Originally Posted By: pdacey This post was automatically imported from our archived forum.
We’ve kicked this around a lot at our local HI org. meetings. One of the other inspectors has talked to Watts (one of the manufacturers of T&P valves) and they (Watts) do not allow any plastic pipe to be installed on their valves. The city of SA allows CPVC on T&P drain lines. I still write it up because the manufacturer doesn’t allow it and manufacturer’s spec supercedes what the city allows. IMHO.