SC Plumber Contractor Practice Questions - South Carolina Plumber Contractor Examination Exam

It may be reduced one pipe size if the run is shorter than 6 feet. A shutoff valve is required so the heater can be serviced without draining the building. It shall be the full size of the valve outlet, shall not be trapped, shall serve only that relief device, and shall terminate not more than 6 inches above the floor or waste receptor. It shall be connected directly to the sanitary building drain with a trapped wye.