General Requirements

Piping protection (corrosion, stress, freezing, physical damage per Sec 312.0). Installation: pipe supports, hanger spacing, sleeving (Sec 313.0). Testing: water and air test procedures for DWV and supply.

Questions

A 3-inch diameter steel pipe passes through a concrete foundation wall. A sleeve…
According to Section 313.0, when must piping passing through concrete or masonry…
When testing a DWV system with a water test, what is the minimum height of the w…
According to CPC Section 312.0, when a water test is performed on a drainage sys…
What is the minimum required air pressure for testing a DWV system with an air t…
A 1 1/2-inch diameter PVC schedule 40 drain pipe is installed in a trench under …
According to Section 312.0, when must piping be protected from corrosion?
A 1-1/2 inch diameter copper water supply pipe is installed horizontally. Using …
A 3-inch diameter Type L copper water distribution pipe is installed in an exter…
A 2-inch diameter copper water pipe passes through a 2x4 wood stud wall. Accordi…
According to Section 312.0, when must piping be protected from physical damage?
A 2-inch diameter ABS DWV pipe is installed in a concrete slab-on-grade foundati…
According to Section 312.0, when must piping be protected from freezing?
During a water test of a DWV system, the inspector notes that a 3-inch diameter …
A 2-inch diameter Schedule 40 PVC horizontal drainage pipe is installed. What is…
A 3-inch diameter cast-iron soil pipe is installed horizontally. Using Table 313…
A plumbing contractor is installing a 4-inch diameter cast iron soil pipe horizo…
What is the minimum clearance required between piping and electrical conduits to…
A 6-inch diameter cast iron soil pipe is installed vertically through three floo…
An air test is being performed on a new DWV system. The system is pressurized to…