TSASK
TECHNICAL SAFETY AUTHORITY
O F S A S K AT C H E W A N


Adoption Of 2020
Nationa l Plumbing
Code In Saskatch ewa n
Agenda
• Changes from 2015 to 2020 NPC
• Changes to the Saskatchewan
  Plumbing Code Regulations
• Date of Enforcement
• Permitting and Inspections
• Additional Reference Material
• Question and Answer segment



                                  2
Changes in 2020 Plumbing Code
• New Defined Terms, abbreviation and
  wording changes
• Seismic Design
• Piping and tubing material
• Nominal Pipe Size (NPS)
• Asbestos based material
• Water Temperature Control
• Protection from Backflow
• Non-Potable Water System
• Non-Potable Rainwater Harvesting system
                                            3
       New Defined Terms and Abbreviations
Nominal Pipe Size (NPS)
• The nominal diameter by which a pipe, fitting, trap or other similar
  items is commercially designated




                                                                         4
       New Defined Terms and Abbreviations
Sanitary Drainage Pipe
• A pipe in a sanitary drainage system




                                             5
       New Defined Terms and Abbreviations
Stack
• A vertical sanitary drainage pipe that passes through one or more
  stories and includes any offset that is part of the stack




                                                                      6
       New Defined Terms and Abbreviations
PE-RT
• Polyethylene of Raised Temperature




                                             7
 Sask. Plumbing Code Regulations New Terms
Human Consumptive
Use of water for human consumption, including the following uses and
applications:
  a) Drinking;
  b) Cooking and Food Preparation;
  c) Oral hygiene.



                                                                       8
  Sask. Plumbing Code Regulations New Terms
Hygienic
A use of water for hygienic purposes by humans, including the following uses
and applications:
  a) Bathing and Personal Hygiene but not including swimming;
  b) Showering.


Does not include a human consumptive use.


                                                                           9
                  2.1.2 Service Connections ( wording )
                      NPC 2015                                                                             NPC 2020
2.1.2.                Service Connections                                          2.1.2.                 Service Connections
2.1.2.1.       Sanitary Drainage Systems                                           2.1.2.1.       Sanitary Drainage Systems
1) Except as provided in Subsection 2.7.4., every sanitary drainage system shall   1) Except where supplying systems that are covered in Section 2.7.,
be connected to a public sanitary sewer, a public combined sewer or a private      sanitary drainage systems shall be connected to a public sanitary sewer or a private
sewage disposal system.                                                            sewage disposal system.
2) A combined building drain shall not be installed. (See Note A-2.1.2.1.(2).)     2) A combined building drain shall not be installed. (See Note A-2.1.2.1.(2).)
2.1.2.2.       Storm Drainage Systems                                              2.1.2.2.       Storm Drainage Systems
1) Except as provided in Subsection 2.7.4., every storm drainage system shall      1) Except as provided in Section 2.7., storm drainage systems shall be connected
be connected to a public storm sewer, a public combined sewer or a                 to a public storm sewer, a public combined sewer or a designated storm water
designated storm water disposal location.                                          disposal location.
2.1.2.3.       Water Distribution Systems                                          2.1.2.3.       Water Distribution Systems
1) Except as provided in Subsection 2.7.4., every water distribution system
                                                                                   1) Except as provided in Section 2.7., water distribution systems shall be
shall be connected to a public water main or a potable private water supply
                                                                                   connected to a public water main or a potable private water supply system.
system.

                                                                                                                                                                    10
                              2.1.4 Seismic Design
2.1.4.          Seismic Design
2.1.4.1. Seismic Restraints and Design
1) Plumbing systems in buildings constructed in accordance
with Part 3 of Division B of the NBC shall be designed and
installed to accommodate the seismic forces addressed in
Subsection 4.1.8. of Division B of the NBC. (See Note A-
2.1.4.1.(1).)
A-2.1.4.(1)     Seismic Restraint and Design.
Sentence 2.1.4.1.(1) aims to help ensure that plumbing
systems will remain in place for a sufficient amount of time
during an earthquake to allow for the safe evacuation of the
building.
                                                               11
            2.2.2.2 Conformance to Standards
i) Personal hygiene devices for water closets
    shall conform to ASME A112.4.2/CSA
    B45.16, “Personal hygiene devices for
    water closets.”




Standard that bidet style toilet seats must now meet.


                                                        12
           2.2.5 Non-Metallic Pipe and Fittings
2.2.5.1. Fibrocement Pipe and Fittings
1) Fibrocement pipe and fittings for use in a
drain, waste or vent system shall conform to
CAN/CSA-B127.3, “Fibrocement drain, waste,
and vent pipe and pipe fittings.”




Asbestos Cement Pipe and Fittings has now been removed from National Plumbing Code.
                                                                                      13
               2.2.5 Non-Metallic Pipe and Fittings
2.2.5.6. Crosslinked Polyethylene Pipe and Fittings
1) Crosslinked polyethylene pipe and
manufacturer-approved fittings used in hot and
cold potable water systems shall conform to CSA
B137.5, “Crosslinked polyethylene (PEX) tubing
systems for pressure applications.”
(See note A-2.2.5.6.(1).)


Previously referred to associated fittings, changed to manufacturer approved fittings.

                                                                                         14
             2.2.5 Non-Metallic Pipe and Fittings
2.2.5.15. Polyethylene of Raised Temperature Tube and Fittings – New
1) Polyethylene of raised temperature (PE-RT) tube and manufacturer-approved fittings used in hot and
cold potable water systems shall conform to CSA B137.18, “Polyethylene of raised temperature resistance
(PE-RT) tubing systems for pressure applications.” (See Note A-2.2.5.15.(1).)
2) The use of PE-RT tube shall conform to Table 2.2.5.15.




                                                                                                     15
                 2.2.5 Non-Metallic Pipe and Fittings
2.2.5.16. Cellular Core PVC Pipe and Fittings
1) Cellular core PVC pipe shall:
     a) conform to ASTM F3128, “Standard Specification for Poly(Vinyl Chloride) (PVC)
Schedule 40 Drain, Waste, and Vent Pipe with a Cellular Core,” and
     b) be light grey, as specified in CSA B181.2, “Polyvinylchloride (PVC) and chlorinated
polyvinylchloride (CPVC) drain, waste, and vent pipe and pipe fittings.”

2) Fittings and solvent cements for cellular core PVC pipe shall conform to CSA B181.2,
“Polyvinylchloride (PVC) and chlorinated polyvinylchloride (CPVC) drain, waste, and vent
pipe and pipe fittings.”
3) Cellular core PVC pipe shall only be used in residential buildings containing 1
or 2 dwelling units and in row houses that do not exceed 3 storeys in height.

New material to Canada, restricted to residential.
                                                                                              16
              2.2.7 Non-Ferrous Pipe and Fittings
2.2.7.4. Copper Tube
1) Copper tube shall conform to:
    a) ASTM B88, “Standard Specification for Seamless Copper Water Tube,” or
    b) ASTM B306, “Standard Specification for Copper Drainage Tube (DWV).”
2) Except as provided in Sentence (3), the use of copper tube shall conform to
Table 2.2.7.4.
3) Copper tube shall not be used for the fixture drain or the portion of the
vent pipe below the flood level rim of a urinal.

All urinals are now unable to use copper drainpipe and fitting as
specified in the highlighted clause.
                                                                                 17
2.2.10.6 (7) Valves, and Supply and Waste Fittings
7) Manually operated valves of NPS 4 or less
for use in plumbing systems shall conform to
ASME A112.4.14/CSA B125.14, “Manually
Operated Valves for Use in Plumbing
Systems.” (See Note A-2.2.10.6.(7).)



This clause addition provides performance and lead content
requirements for these valves.

                                                             18
                2.2.10.7 Water Temperature Control
                                                   2015 NPC
2.2.10.7. Water Temperature Control
1) Except as provided in Sentence (2), valves supplying fixed-location shower heads shall be individual pressure-balanced or
thermostatic-mixing valves conforming to ASME A112.18.1/CSA B125.1, “Plumbing Supply Fittings.”
2) Individual pressure-balanced or thermostatic-mixing valves shall not be required for shower heads having a single
tempered water supply that is controlled by an automatic compensating valve conforming to CSA B125.3, “Plumbing
Fittings.”
3) Mixing valves that supply shower heads shall be of the pressure-balanced, thermostatic, or combination pressure-
balanced/thermostatic type capable of:
      a) maintaining a water outlet temperature that does not exceed 49°C; and
      b) limiting thermal shock.
4) The temperature of water discharging into a bathtub shall not exceed 49°C.
(See Note A-2.2.10.7.)
                                                                                                                               19
                   2.2.10.7 Water Temperature Control
                                                                    2020 NPC
2.2.10.7.             Water Temperature Control (See Note A-2.2.10.7.)
1) Except as provided in Sentences (2) and (3), water supplied to shower heads or bathtubs shall be controlled by an automatic compensating valve conforming to:
       a) ASME A112.18.1/CSA B125.1, “Plumbing Supply Fittings,”; or
       b) ASSE 1016/ASME A112.1016/CSA B125.16, “Performance Requirements for Automatic Compensating Valves for Individual Showers and Tub/Shower
       Combinations.”
2) The requirement in Sentence (1) is permitted to be waived where hot water supplied only to bathtubs is controlled by:
       a) an automatic compensating valve conforming to CSA B125.3, “Plumbing fittings,”; or
       b) a temperature-limiting device conforming to ASSE 1070/ASME A112.1070/CSA B125.70, “Performance requirements for water temperature limiting devices.”
3) The requirement in Sentence (1) is permitted to be waived where the water is supplied by a single tempered water line controlled by an automatic compensating
valve conforming to CSA B125.3, “Plumbing fittings.”
4) Except as provided in Sentence (5), the temperature of water discharging from a shower head or into a bathtub shall not exceed 49°C.
5) In healthcare facilities and seniors’ residences, the temperature of water discharging from a shower head or into a bathtub shall:
       a) not exceed 43°C, and;
       b) be adjusted at the shower or bathtub controls.
                                                                                                                                                                   20
                                   Performance Standards
2.2.10.7.         Water Temperature Control (See Note A-2.2.10.7.)
1) Except as provided in Sentences (2) and (3), water supplied to shower heads or bathtubs shall be controlled by an automatic compensating
valve conforming to:
      a) ASME A112.18.1/CSA B125.1, “Plumbing Supply Fittings,”; or
      b) ASSE 1016/ASME A112.1016/CSA B125.16, “Performance Requirements for Automatic Compensating Valves for Individual Showers
      and Tub/Shower Combinations.”
2) The requirement in Sentence (1) is permitted to be waived where hot water supplied only to bathtubs is controlled by:
      a) an automatic compensating valve conforming to CSA B125.3, “Plumbing fittings,”; or
      b) a temperature-limiting device conforming to ASSE 1070/ASME A112.1070/CSA B125.70, “Performance requirements for water
      temperature limiting devices.”
3) The requirement in Sentence (1) is permitted to be waived where the water is supplied by a single tempered water line controlled by an
automatic compensating valve conforming to CSA B125.3, “Plumbing fittings.”

These clauses address certification and selection of valves supplying all types
of showerheads and bathtub taps. These standards provide the ability to control water temperature discharge.
                                                                                                                                            21
Standard and Spec Sheet example




                                  22
                      Temperature Requirements
4) Except as provided in Sentence (5), the temperature of water discharging from a shower head or into a
bathtub shall not exceed 49°C.
5) In healthcare facilities and seniors’ residences, the temperature of water discharging from a
shower head or into a bathtub shall:
    a) not exceed 43°C; and
    b) be adjusted at the shower or bathtub controls.




The temperature is reduced in healthcare facilities and senior residences.


                                                                                                           23
                         2.2.10.8 Direct Flush Valves
2.2.10.8.       Direct Flush Valves
1) Direct flush valves shall:
     a) open fully and close positively under service pressure;
     b) complete their cycle of operation automatically;
     c) be provided with a means of regulating the volume of water that
they discharge;
     d) be provided with a vacuum breaker unless the fixture is designed
so that back-siphonage cannot occur; and
     e) conform to ASSE 1037/CSA B125.37, “Performance
requirements for pressurized flushing devices for plumbing
fixtures”.

Added clause to address performance requirements.
                                                                           24
   2.2.10.10 Back-Siphonage Preventers and Backflow Preventers
                                       2015 NPC                                                                                                  2020 NPC
2.2.10.10.         Back-Siphonage Preventers and Backflow Preventers                                  2.2.10.10.       Back-Siphonage Preventers and Backflow Preventers
          1) Except as provided in Sentence (2), back-siphonage preventers and backflow preventers    1) Except as provided in Sentence (2), back-siphonage preventers and backflow preventers shall conform to
shall conform to                                                                                      a) CSA B64.0, “Definitions, general requirements, and test methods for vacuum breakers and backflow preventers,”
         a) CSA B64.0, “Definitions, General Requirements, and Test Methods for Vacuum Breakers and   b) CSA B64.1.1, “Atmospheric vacuum breakers (AVB),”
Backflow Preventers,”
                                                                                                      c) CSA B64.1.2, “Pressure vacuum breakers (PVB),”
         b) CSA B64.1.1, “Atmospheric Vacuum Breakers (AVB),”
                                                                                                      d) CSA B64.1.3, “Spill-resistant pressure vacuum breakers (SRPVB),”
         c) CSA B64.1.2, “Pressure Vacuum Breakers (PVB),”
                                                                                                      e) CSA B64.2, “Hose connection vacuum breakers (HCVB),”
         d) CSA B64.1.3, “Spill-Resistant Pressure Vacuum Breakers (SRPVB),”
                                                                                                      f) CSA B64.2.1, “Hose connection vacuum breakers (HCVB) with manual draining feature,”
         e) CSA B64.2, “Hose Connection Vacuum Breakers (HCVB),”
                                                                                                      g) CSA B64.2.2, “Hose connection vacuum breakers (HCVB) with automatic draining feature,”
         f) CSA B64.2.1, “Hose Connection Vacuum Breakers (HCVB) with Manual Draining Feature,”
                                                                                                      h) CSA B64.3, “Dual check valve backflow preventers with atmospheric port (DCAP),”
         g) CSA B64.2.2, “Hose Connection Vacuum Breakers (HCVB) with Automatic Draining Feature,”
                                                                                                      i) CSA B64.4, “Reduced pressure principle (RP) backflow preventers,”
         h) CSA B64.3, “Dual Check Valve Backflow Preventers with Atmospheric Port (DCAP),”
                                                                                                      j) CSA B64.4.1, “Reduced pressure principle backflow preventers for fire protection systems (RPF),”
         i) CSA B64.4, “Reduced Pressure Principle (RP) Backflow Preventers,”
                                                                                                      k) CSA B64.5, “Double check valve (DCVA) backflow preventers,”
         j) CSA B64.5, “Double Check Valve (DCVA) Backflow Preventers,”
                                                                                                      l) CSA B64.5.1, “Double check valve backflow preventers for fire protection systems (DCVAF),”
         k) CSA B64.6, “Dual Check Valve (DuC) Backflow Preventers,”
                                                                                                      m) CSA B64.6, “Dual check valve (DuC) backflow preventers,”
         l) CSA B64.7, “Laboratory Faucet Vacuum Breakers (LFVB),” or
                                                                                                      n) CSA B64.6.1, “Dual check valve backflow preventers for fire protection systems (DuCF),”
         m) CSA B64.8, “Dual Check Valve Backflow Preventers with Intermediate Vent (DuCV).”
                                                                                                      o) CSA B64.7, “Laboratory faucet vacuum breakers (LFVB),”

                                                                                                      p) CSA B64.8, “Dual check valve backflow preventers with intermediate vent (DuCV),” or

Added clauses referring to Type F (fire) Back Flow Preventers.                                        q) CSA B64.9, “Single check valve backflow preventers for fire protection systems (SCVAF).”


                                                                                                                                                                                                                  25
 2.2.10.10 Back-Siphonage Preventers and Backflow Preventers
2) Back-siphonage preventers for
tank-type water closets
 (anti-siphon fill valves) shall conform
to ASSE 1002/ASME A112.1002/CSA
B125.12, “Anti-siphon fill valves for
water closet tanks.”




 New certification for water closet fill valves




                                                               26
         2.2.10.18 Flexible Water Connectors
2.2.10.18.    Flexible Water Connectors
1) Flexible water connectors exposed to continuous
pressure shall conform to ASME A112.18.6/CSA
B125.6, “Flexible water connectors.”


This is a new standard.




                                                     27
                             2.3.3 Joints and Connections
2.3.3.4. Unions and Slip Joints
(See Note A-2.2.3.1.(1) and (3).)

1) Except as provided in Sentence 2.4.6.3.(6), running
   thread and packing nut connections and unions with a
   gasket seal shall not be used downstream of a trap
   weir in a drainage system or in a venting system.
6) Where there is a building trap, the discharge
pipe from the equipment shall be connected to the
building drain downstream of the trap.


Clause 6) provides an exception to clause 1).
                                                            28
 2.3.3.8 Connection of Floor or Wall Outlet Fixtures




5) Water-closet bowls shall be securely attached to
the floor flange, floor or wall carrier.
                                                      29
A.2.3.3.9 Expansion and Contraction




                                      30
             2.3.4.5 Support for Horizontal Piping
4) Where PEX, PE-RT, PP-R, PE/AL/PEX
plastic pipe or tube is installed, hangers
shall not compress, cut or abrade the
pipe.


PE-RT was added to the clause and
the table.




                                                     31
                               2.3.5.1 Protection of Piping
2.3.5.1.            Protection of Piping
1) Underground piping shall be protected
       a) in the absence of the pipe manufacturer’s instructions for backfill, by
backfill that is (see Note A-2.3.5.1.(1)(a))
             i) placed and compacted to a height of 300 mm over the top of the
      pipe, and
            ii) free of stones, boulders, cinders and frozen earth or other
      material capable of damaging the piping, or
      b) by concrete that is at least 75 mm thick and at least 200 mm wider
than the pipe.


Formerly referred to as Backfilling Protection of Pipe.



                                                                                    32
    2.3.6 Testing of Drainage or Venting Systems
2.3.6.5.           Air Pressure Tests
1) Air pressure tests shall be conducted in accordance with the manufacturer’s
instructions for each piping material; and
      a) air shall be forced in the system until a pressure of 35 kPa is created; and
     b) this pressure shall be maintained for at least 15 min without a drop in
pressure.
(See Note A-2.3.6.5.(1).)

The test substance cannot affect the plumbing system material.

A-2.3.6.5.(1) Air Pressure Tests. The addition of a non-toxic indicating substance, such as an aerosol, fluorescent dye,
smoke or an odorant, to an air pressure test may help in identifying the location of a leak. However, the additive must be
compatible with the piping material being tested: the intent is to identify the leak without affecting the outcome of
the test or the integrity of the plumbing system.

                                                                                                                             33
                         2.4.6.3 Sumps or Tanks




3) Where the sump or tank receives subsurface     This follows the direction of
water from a subsoil drainage pipe, it shall be
                                                  the National Building Code.
provided with a water and airtight cover.
                                                                                  34
                             2.4.6.4 Protection from Backflow
2.4.6.4.        Protection from Backflow
1) Except as provided in Sentences (2) and (3), where a building drain or a branch may be subject to backflow, a
backwater valve shall be installed on every fixture drain connected to them when the fixture is located below the level
of the adjoining street.
2) Where more than one fixture is located on a storey and all are connected to the same branch, the backwater valve is
permitted to be installed on the branch.
3) A subsoil drainage pipe that drains into a sanitary drainage system that is subject to surcharge shall be connected in
such a manner that sewage cannot back up into the subsoil drainage pipe. (See note A-2.4.6.4.(3).)
4) Except as permitted in Sentence (5), a backwater valve or a gate valve that would prevent the free circulation of air
shall not be installed in a building drain or in a building sewer.

5) A backwater valve is permitted to be installed in a building drain, provided that:

        a) it is a “normally open” design conforming to:
                i) CSA B70, “Cast iron soil pipe, fittings, and means of joining,”;

                ii) CSA B181.1, “Acrylonitrile-butadiene-styrene (ABS) drain, waste, and vent pipe and pipe fittings,”;

                iii) CSA B181.2, “Polyvinylchloride (PVC) and chlorinated polyvinylchloride (CPVC) drain, waste, and
vent pipe and pipe fittings,”; or                                                                                           No longer recognized as options in the
                iv) CSA B182.1, “Plastic drain and sewer pipe and pipe fittings,”; and                                      National Plumbing Code.
        b) it does not serve more than one dwelling unit.
                                                                                                                                                               35
Sask. Plumbing Code Regulations - Backwater Valves
7 Sentences 2.4.6.4.(1) and (2) of Divisions B are
amended:
1) Except as provided in Sentences (2) and (3),
   where a building drain or a branch may be
   subject to backflow from a fixture or a public
   sewer, a backwater valve shall be installed on
   every fixture drain connected to them when the
   fixture is located below grade.
2) Where more than one fixture is in the same
   room and all are connected to the same branch,
   the backwater valve is permitted to be installed
   on the branch.

This amendment is to prevent self flooding in a residence.
                                                             36
                           2.4.7.4 Location of Cleanouts
5) Cleanouts serving fixture drains in healthcare facilities, mortuaries,
laboratories and similar occupancies, where contamination by
hazardous waste is likely, shall be located a minimum of 150 mm above
the flood level rim of the fixture. (See Note A-2.4.4.4.(1).)
A-2.4.4.4.(1) Hazardous Waste. Chemically loaded and bio-hazardous
wastes can be dangerous to private or public sewer systems and
hazardous to people. The treatment of corrosive and acid waste is
mandated by this Code. The treatment of chemically loaded effluents is
usually regulated by sewage collecting and treatment authorities. The
treatment of bio-hazardous waste should follow “good engineering
practice,” such as that described in Laboratory Biosafety Guidelines
published by Health Canada. It should be noted that bio-hazardous
waste disposal systems require specific engineering expertise and remain
outside the scope of this Code.



                                                                    Terminology change from body fluids to hazardous waste.

                                                                                                                         37
            2.4.9.3 Size of Fixture Outlet Pipes




A change in how fixture units are calculated for shower drains.


                                                                  38
             2.4.9.3 Size of Fixture Outlet Pipes
3) Where clothes washers do not drain
to a laundry tray, the trap inlet shall
be not less than NPS 2 and be fitted
with a vertical standpipe that is not
less that 600 mm long measured from
the trap weir and terminates above
the flood level rim of the clothes
washer. (See Note A-2.4.9.3.(3).)




Amended for clothes washers.

                                                    39
 2.4.10 Hydraulic Loads




2 ½” trap has been removed from this table.
                                              40
                       2.5.5 Miscellaneous Vent Pipes
2.5.5.3. Venting of Drain Piping and Tanks for Corrosive Waste
1) Venting systems for drain piping, neutralizing
tanks, or dilution tanks conveying corrosive waste
shall extend independently and terminate
outdoors.
(See Article 2.5.7.7. for sizing of these vents.)




A wording change that removed dilution
from the title and
changed outside to outdoors.

                                                                 41
                    2.5.7 Minimum Size of Vent Pipes
2.5.7.7. Vents for Sewage Sumps, Neutralizing and Dilution Tanks, and Macerating Toilet Systems

1) Except as provided in Sentences (2) and (3), the minimum nominal
pipe size of the vent pipe for a sewage sump or neutralizing or
dilution tank shall be one NPS smaller that the NPS of the largest
branch or fixture drain draining to the sump.
2) The nominal pipe size of every vent pipe for a sewage sump or
neutralizing or dilution tank shall be not less that NPS 2 but need not
be great than NPS 4.
3) The nominal pipe size of a vent pipe for a macerating toilet system
with a sump shall not be less that NPS 1 ½.



 A wording change adding
 “NPS” and “Neutralizing Tank”.
                                                                                                  42
            2.6.2. Protection from Contamination
2.6.2.1. Connection of Systems
1) Except as provided in Sentence (2), connections to potable water
systems shall be designed and installed so that non-potable water or
substances that may render the water non-potable cannot enter the
system.
2) A water treatment device or apparatus shall not be installed unless it can
be demonstrated that the device or apparatus will not introduce
substances into the system that may endanger health.
3) Backflow preventers shall be selected and installed in conformance with
CSA B64.10, “Selection and installation of backflow preventers.”


The reference to maintenance of a backflow preventer was removed. Maintenance is not in the
scope of the National Plumbing Code.
                                                                                              43
           2.6.2 Protection from Contamination
2.6.2.4   Backflow from Fire Protection Systems




                                                  44
            2.6.2 Protection from Contamination
2) Except as required by Sentence (4), potable water system connections to fire sprinkler and standpipe
systems shall be protected against backflow caused by back-siphonage or back pressure in conformance with
clause (a) to (g), as applicable:
      a) residential partial flow-through fire sprinkler/standpipe systems in which the pipes and fittings are
constructed of potable water system material shall be protected a dual check valve backflow preventer
conforming to:
           i) CSA B64.6, “Dual check valve (DuC) backflow preventers”; or
           ii) CSA B64.6.1, “Dual check valve backflow preventers for fire protection systems (DuCF)”.
      b) provided that the systems do not use antifreeze or other additives of any kind and that all pipe and
fittings are constructed of potable water system materials, Class 1 fire sprinkler/standpipe systems shall be
protected by a single or dual check valve backflow preventer conforming to
           i) CSA B64.6, “Dual check valve (DuC) backflow preventer”; or
           ii) CSA B64.9,”Single check valve backflow preventers for fire protection system(SCVAF)”.



                                                                                                                 45
     Saskatchewan Plumbing Code Regulations
2.6.2.4(3) Backflow preventers required in
Sentence (2) shall not adversely affect the
designed performance of the system and be
installed upstream of the fire department
pumper connection.
(See Note a-2.6.2.4(3)).

This is an extra requirement for installations in Saskatchewan.



                                                                  46
           2.6.2 Protection from Contamination
           2015 NPC                                                2020 NPC
2.6.2.5. Separation of Water Supply Systems        2.6.2.5. Separation of Water Supply Systems
         1) No private water supply system shall            1) Where a private water supply system or a
         be interconnected with a public water              non-potable water system is supplied by a
         supply system.                                     public water supply system, the public water
                                                            supply system shall be protected in
                                                            accordance with Article 2.6.2.1.




       Clause changed for 2020.
                                                                                                       47
                      2.6.3 Size and Capacity of Pipes
2.6.3.4.          Size
1) Water service pipes shall be sized according to the peak
Demand flow but shall not be less than NPS ¾.
2) Except as provided in Sentence (3), the nominal pipe size of a supply pipe
that serves a fixture shall conform to Table 2.6.3.2.-A.
3) For fixtures listed in Table 2.6.3.2.-A that are permitted to have an NPS 3/8
supply pipe, a connector not more than 750 mm long and not less than NPS ¼
may be used to supply water to the fixture.
4) No water system between the point of connection with the water service
pipe or the water meter and the first water distribution pipe that supplies a
water heater that serves more than one fixture shall be sized less than NPS ¾.

Wording change that adds NPS and the term water distribution pipe.
                                                                                   48
2.7 Non-Potable Water Systems




                                49
          Saskatchewan Plumbing Regulations
2.7.1.1
6) Where a non-potable water system that utilizes sewage is installed, it
   shall conform to CSA B128.3, ‘Performance of non-potable water
   reuse systems’ and produce an effluent with a water quality suitable
   for the use to which it is put.




 This is an extra requirement in Saskatchewan to increase safety in these situations.

                                                                                        50
               2.7 Non-Potable Water Systems
2.7.1.2. Identification and Marking
   1) Non-potable water piping and
   outlets shall be identified and
   marked in accordance with
   CAN/CSA-B128.1, “Design and
   Installation of Non-Potable Water
   Systems.”
Non-potable systems must be identified.

                                               51
                2.7 Non-Potable Water Systems
2.7.1.3. Location of Pipes
1) Non-potable water piping shall not be located directly above:
        a) areas where food, drink or products that are intended for human consumption are
        prepared, handled, dispensed or stored; or
        b) a non-pressurized or pressurized potable water tank.




                                                                                             52
                   2.7 Non-Potable Water Systems
2.7.1.4.       Location of Outlets
1) Except as provided in Subsection 2.7.2., an outlet from a non-potable water system shall not be
located where it can discharge into:
          a) a fixture into which an outlet from a potable water system is discharged; or
          b) a fixture that is used for the preparation, handling or dispensing of food, drink or
products that are intended for human consumption.


 The non-potable piping cannot discharge into a fixture that is used for food or drink.




                                                                                                     53
2.7.2 Non-Potable Rainwater Harvesting Systems
                       2.7.2.1. General
                               1) For purposes of this Subsection, rainwater
                               shall mean storm water discharged from an
                               above-ground roof surface. (See Note A-
                               2.7.2.1.(1).)
                               2) For purposes of this Subsection, a non-
                               potable rainwater harvesting system shall
                               mean a storage tank, a pump, pipes, fittings
                               and other plumbing appurtenances used to
                               collect and distribute rainwater, but shall not
                               include a rain barrel not connected to a
                               plumbing system.


                                                                            54
    2.7.2 Non-Potable Rainwater Harvesting System
2.7.2.2. Permitted Applications
1) Non-potable rainwater harvesting systems are only permitted to supply:
          a) water closets and urinals;
          b) clothes washers;
          c) floor-mounted service sinks and laundry trays;
          d) trap primers;
          e) irrigation systems;
          f) hydronic systems;
          g) make-up water systems for heat rejection systems; or
          h) any other application where the harvested rainwater is not
          expected to be ingested or inhaled.
(See Note A-2.7.2.2.(1) and 2.7.2.4.(3) and (4).)
                                                                            55
     2.7.2 Non-Potable Rainwater Harvesting System
2.7.2.4. Non-Potable Rainwater Harvesting System Design
1) Non-potable rainwater harvesting systems and their connections shall be designed, fabricated and installed in
accordance with this Subsection and good engineering practice. (See Note A-2.7.2.4.(1).)
2) Non-potable rainwater harvesting systems shall not collect water discharged from an evaporative heat rejection
system.
3) Non-potable rainwater harvesting systems shall be provided with a means to treat the harvested rainwater in such a
manner that the quality of the delivered non-potable water conforms to appropriate provincial or territorial
requirements or, in the absence of such requirements, the systems shall conform to Sentence (4).
(See Note A-2.7.2.2.(1) and 2.7.2.4.(3) and (4).)




                                                                                                                        56
     2.7.2 Non-Potable Rainwater Harvesting System
4) Except as provided in Sentence (3), non-potable rainwater harvesting systems shall be provided with:
      a) a water treatment system consisting of:
            i) a debris screen with a mesh size of not more than 6mm ahead of the storage tank inlet;
            ii) a first-flush diversion system with a capacity of not less than 0.3 L/m2 of roof area ahead of the storage tank inlet;
            iii) a calming inlet or settling chamber ahead of the storage tank inlet;
            iv) a device to prevent the entrainment of sediment into the pump; and
            v) where the harvested rainwater is used for an indoor application, a filter with a mesh size of not more than 50 μm ahead of the
            storage tank inlet; or
      b) a means to treat the harvested rainwater in such a manner that the delivered non-potable water contains not more than the
      maximum acceptable levels of contaminants stated in CSA B805/ICC 805, “Rainwater harvesting systems”.
      (See Note A-2.7.2.2.(1) and 2.7.2.4.(3) and (4).)
5) Where the static pressure at any fixture in a non-potable rainwater harvesting system may exceed 550 kPa, a pressure-

reducing valve shall be installed to limit the maximum static pressure at the fixture to 550 kPa.

                                                                                                                                            57
       2.7.2 Non-Potable Rainwater Harvesting System
6) Storage tanks in non-potable rainwater harvesting systems shall be designed and installed in accordance with:
       a) CAN/CSA-B126.0, “General requirements and methods of testing for water cisterns”; and
       b) CAN/CSA-B126.1, “Installation of water cisterns”.
7) Storage tanks in non-potable rainwater harvesting systems shall be equipped with an overflow that directs excess rainwater to:
       a) a public storm sewer;
       b) a public combined sewer;
       c) a storm water management system; or
       d) a designated storm water disposal location.
8) Where the storage tank outlet is located below the level of the adjoining street, the storage tank overflow required by Sentence (7) shall:
       a) terminate with an indirect connection that is not located within the building, or
       b) be equipped with a backwater valve.
9) Make-up water connections to non-potable rainwater harvesting systems shall:
       a) be equipped with a reduced pressure principle backflow preventer; or
       b) have an air gap.
10) Where a fixture combines water from a non-potable rainwater harvesting system and potable water at the fixture supply fitting, the potable water system shall
      be protected by a backflow preventer as described in Sentence 2.6.2.1.(3).
                                                                                                                                                                    58
When does enforcement of the 2020 NPC begin?
                  • 2020 National
                    Plumbing Code will
                    come into
                    enforcement in
                    Saskatchewan on
                    January 1, 2024.
                                               59
              TSASK Plumbing Fee Schedule
Permits Are Required to:
•   Extend
•   Install
•   Construct
•   Renovate
•   Establish
•   Alter
•   Repair
•   Remove a Plumbing System
•   Connect a Plumbing System to
    communal sewage or communal
    waterworks
                                            60
                               Inspections
• TSASK requires 48 hours notification for service

• Testing of Drainage and Venting as per 2.3.6 in National Plumbing Code

• Owner or Owner’s representative needs to be onsite for inspection

Local Plumbing Authorities:




                                                                           61
The Two Steps of a Plumbing Inspection
           •   Inspection and Testing of Roughed-in Plumbing including
               Venting and Drainage system.
           •   Final Inspection including installation and testing
               requirements of all fixtures in an operational plumbing system
               that complies with NPC.




                                                                            62
Additional Reference Material




                                63
   NBC Volume 1 3.7 Health Requirements
• 3.7.2 Plumbing Facilities
    • Gives the ratio for occupancy of types of building to the
      requirements for toilets and lavatories
    • 3.7.2.6 Floor Drains
            • A floor drain shall be installed in a washroom
              containing a urinal equipped with an automatic
              flushing device


                                                               64
                         3.8. Accessibility
3.8.3 Design
  • Gives information on
    barrier free pathways
    and clearances.
  • References to A3.8.2.8 1)
    to 4)




                                              65
 NBC Volume 2 Part 9 Housing and Small Buildings
• 9.31 Plumbing Facilities
   • 9.31.4 Required Facilities
       • 9.31.4.3 Floor Drains
           1) Where gravity drainage to sewer, drainage ditch or dry well is
              possible, a floor drain shall be installed in a basement forming part of
              the dwelling unit.
           2) A floor drain shall be provided in a garbage room, incinerator room or
              boiler room serving more than one dwelling unit
• 9.16.3.3 Floor Drains
   1) When floor drains are required (see Section 9.31.), the floor surface shall be
      sloped so that no water accumulate
                                                                                       66
Questions?



             67
Visit Our Website at
    www.tsask.ca




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