This list comprises some of the most common code violations found in repiping installations. It does not address every possible violation, nor is it intended as an instruction manual.
- The water piping system shall be sized per Table 6-5 of the 2001 CPC.
- The water piping system shall be supported with approved hangers and supports as per Table 3-2 of the 2001 CPC.
- Soldered joints shall not have a lead content of more than two-tenths of one percent per 316-1-3 of the 2001 CPC.
- Copper water piping is not allowed “underground” inside of a building.
- Galvanized steel water piping must be kept at least 6” above ground.
- A transition between copper and galvanized water piping must be made with either a di-electric union (accessible locations only) or a 6’ brass nipple and couplings.
- Any replacement of shower or tub/shower combination valves shall require such valves to be of the pressure balancing or thermostatic mixing valve type.
- Quick closing valves such as dishwashers and clothes washers shall be provided with devices to minimize water hammer per Section 609.10, 609.10.1, of the 2001 CPC.
- Non-removable backflow prevention devices shall be installed on all hose bibs.
- Locate and reinstall existing water bond from the main electrical service panel. (Clamp must be in an accessible location)
- Resulting damage to shear walls, firewalls, and stucco shall be repaired and inspected by separate inspections. (Requires separate building permit)
Last updated: 5/8/2008 10:40:17 PM