The first time I can remember seeing the photograph to your left I was 18 years old and preparing to go to Austin, Texas to take the Journeyman Plumber's exam.
  That was 1979. These years later ; even though I have been a Contractor, Building Inspector, Building official and now State Investigator for the licensing board- I remember that feeling of pride. They say "Once a Marine -Always a Marine" - I feel the same way about the plumbibng trade.
-Mike Doles
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                     COMMON RESIDENTIAL PLUMBING
                                   CODE VIOLATIONS

    Solvent Cement and Primers for Water 
           Distribution Piping

  Solvent cements and primers must be used. Purple primer complying with ASTM F 656 shall be applied. Solvent Cement NOT purple in color and conforming to ASTM D 2564 or CSA-B137.3 shall be applied to all joint surfaces.  

   Solvent Cement and primers for PVC  
      Drain waste and Vent Piping.

Solvent cements and primers are intended for use with IAPMO listed PVC pipe and fittings. These products shall be used in accordance with the manufacturer's instructions, technical bulletins and labels and the requirements of the latest editions of applicable IAPMO Installation Standards and the  Plumbing Code. Primers are required for PVC pipe and fittings. Solvent cement that conforms to ASTM D 2564, CAS B137.3 CSA B181.2 or CSA B 182.1.  USE PURPLE PRIMER and cement that is not purple. See IPC Code Sec. 705.14.2.

 

!!! REMEMBER: ASTM 2564 for Cement and ASTM F 656 for cleaner !!!!

   For a complete list of approved solvent cements and pipe go to the IAPMO site at: http://mirobase.iapmo.org/r&t/directory_master_cert_pdf.asp?mode=pld&id=0000783&print=true

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                              Breakage and corrosion.
      Pipes passing  through or under walls shall be protected from breakage. Pipes passing through concrete or cinder walls and floors, cold-formed steel framing or other corrosive material shall be protected against external corrosion by a protective sheathing or wrapping or other means that will withstand any reaction from lime and acid of concrete, cinder or other corrosive material. Sheathing or wrapping shall allow for expansion and contraction of piping to prevent any rubbing action. Minimum wall thickness of material shall be 0.025 inch (0.64 mm).

Sleeves. Annular spaces between sleeves and pipes shall be filled or tightly caulked as approved by the building official. Annular spaces between sleeves and pipes in fire-rated assemblies shall be filled or tightly caulked in accordance with the building portion of this code.

 

 Pipes through footings or foundation walls. A soil or waste pipe, or building drain passing under a footing or through a foundation wall shall be provided with a relieving arch; or there shall be built into the masonry wall a pipe sleeve two pipe sizes greater than the pipe passing through.
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                                     SUPPORT:
 General. Support for piping shall be provided in accordance with the following:
1. Piping shall be supported so as to ensure alignment and prevent sagging, and allow movement associated with the expansion and contraction of the piping system.

NOTE: PVC Piping shall be supported horizontally every 4-feet.

2. Piping in the ground shall be laid on a firm bed for its entire length, except where support is otherwise provided.

              3. Hangers and anchors shall be of sufficient strength to maintain their proportional share of the weight of pipe and contents and of sufficient width to prevent distortion to the pipe. Hangers and strapping shall be of approved material that will not promote galvanic action. Rigid support sway bracing shall be provided at changes in direction greater than 45 degrees (0.39 rad) for pipe sizes 4 inches (102 mm) and larger.

            4. Piping shall be supported at distances not to exceed those indicated in Table provided in the adopted code. 




                        WHIRLPOOL BATHTUBS

 
      Access panel. A door or panel of sufficient size shall be installed to provide access to the pump for repair and/or replacement. 
     Piping drainage. The circulation pump shall be accessibly located above the crown weir of the trap. The pump drain line shall be properly graded to ensure minimum water retention in the volute after fixture use. The circulation piping shall be installed to be self-draining. 
      Leak testing. Leak testing and pump operation shall be performed in accordance with the manufacturer's installation instructions. 
     Manufacturer's instructions. The product shall be installed in accordance with the manufacturer's installation instructions.

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                              WATER HEATERS:

 

   Combination pressure/temperature relief valves. Installation of relief valves.
A check or shutoff valve  shall not be installed in the following locations:
1. Between a relief valve and the termination point of the relief valve discharge pipe; 
2. Between a relief valve and a tank; or
3. Between a relief valve and heating appliances or equipment.

                         Requirements of discharge pipe.
    The outlet of a pressure relief valve, temperature relief valve or combination thereof, shall not be directly connected to the drainage system. The discharge from the relief valve shall be piped full size separately to the outside of the building or to an indirect waste receptor located inside the building. In areas subject to freezing, the relief valve shall discharge through an air gap into an indirect waste receptor located within a heated space, or by other approved means. The discharge shall be installed in a manner that does not cause personal injury or property damage and that is readily observable by the building occupants. The discharge from a relief valve shall not be trapped. The diameter of the discharge piping shall not be less than the diameter of the relief valve outlet. The discharge pipe shall be installed so as to drain by gravity flow and shall terminate atmospherically not more than 6 inches (152 mm) above the floor. The end of the discharge pipe shall not be threaded.

     Required Pan : Where water heaters or hot water storage tanks are installed in locations where leakage of the tanks or connections will cause damage, the tank or water heater shall be installed in a galvanized steel pan having a minimum thickness of 24 gage (0.016 inch) (0.4 mm) or other pans listed for such use. 
 Pan size and drain. The pan shall be not less than 1.5 inches (38 mm) deep and shall be of sufficient size and shape to receive all dripping and condensate from the tank or water heater. The pan shall be drained by an indirect waste pipe having a minimum diameter of 1 inch (25.4 mm) or the outlet diameter of the relief valve, whichever is larger. 
 Pan drain termination. The pan drain shall extend full-size and terminate over a suitably located indirect waste receptor or shall extend to the exterior of the building and terminate not less than 6 inches (152 mm) and not more than 24 inches (610 mm) above the adjacent ground surface.

 Garage Location: Water Heater must be elevated 18” above floor and provided with means of impact protection.

 

                                    ************************************************                          PROTECTION OF WATER SUPPLY

         A potable water supply system shall be designed and installed in such a manner as to prevent contamination from non potable liquids, solids or gases being introduced into the potable water supply.  Connections shall not be made to a potable water supply in a manner that could contaminate the water supply or provide a cross-connection between the supply and source of contamination unless an approved backflow-prevention device is provided. Cross-connections between an individual water supply and a potable public water supply shall be prohibited.

                               
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    Hose connection backflow preventer. Hose connection backflow preventers shall conform to ASSE/ANSI 1052.  The backflow preventer shall be installed on the discharge side of a hose threaded outlet.

 

   Thermal expansion.
In addition to the required pressure relief valve, an approved device for thermal expansion control shall be installed on any water supply system utilizing storage water heating equipment whenever the building supply pressure is greater than the required relief valve pressure setting or when any device, such as a pressure reducing valve, backflow preventer or check valve, is installed that prevents pressure relief through the building supply.  The thermal expansion control device shall be sized in accordance with the manufacturer's installation instructions.

 
   

 Water hammer. The flow velocity of the water distribution system shall be controlled to reduce the possibility of water hammer. A water-hammer arrestor shall be installed where quick-closing valves are utilized, unless otherwise approved. Water hammer arrestors shall be installed in accordance with manufacturer's installation instructions. Water-hammer arrestors shall conform to ASSE/ANSI 1010.

                                   

                                           VALVES: 
 Service valve. Each dwelling unit shall be provided with an accessible main shutoff valve near the entrance of the water service. The valve shall be of a full-open type having nominal restriction to flow, with provision for drainage such as a bleed orifice or installation of a separate drain valve. Additionally, the water service shall be valved at the curb or property line in accordance with local requirements

 Water heater valve. A readily accessible full-open valve shall be installed in the cold-water supply pipe to each water heater at or near the water heater.

                           VENTING: 

                               

             Trap seal protection. The plumbing system shall be provided with a system of vent piping that will permit the admission or emission  of air so that the seal of any fixture trap shall not be subjected to a pneumatic pressure differential of more than 1 inch of water .

 

    Venting required. Every trap and trapped fixture shall be vented in accordance with one of the venting methods specified in the residential plumbing code.

 

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DRILLING AND NOTCHING . Wood-framed structural members shall not be drilled, notched or altered in any manner except as provided in the adopted code. 
 STUDS. Any stud in an exterior wall or bearing partition may be cut or notched   to a depth not exceeding 25 percent of its width.  Studs in nonbearing partitions may be notched to a depth not to exceed 40 percent of a single stud width.  Any stud may be bored or drilled, provided that the diameter of the resulting hole is no greater than 40 percent of the stud width, the edge of the hole is no closer than 5/8 inch (15.9 mm) to the edge of the stud, and the hole is not located in the same section as a cut or notch.

   TOP PLATE . When piping or ductwork is placed in or partly in an exterior wall or interior, braced or load-bearing wall, necessitating a cutting of the top plate by more than 50 percent of its width, a galvanized metal tie not less than 0.054 inch thick (1.37 mm) (16 gage) and 1.5 inches (38 mm) wide shall be fastened to each plate across and to each side of the opening with not less than six 16d nails.

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