T&P Pipe and Gas Drip Leg

[jgromkoski (John Gromkoski, License No. 16000020183)]

Has anything changed recently with respect to the material for a T & P relief valve extension pipe? I have come across a few water heaters with Schedule 40 PVC being used on a 4 year old house, and new water heater installation by Sears. Did I miss the memo?

I have also seen no drip leg provided at the gas line to the water heater and furnaces, just an elbow turned into the gas valves. Did I miss something there too?

[jpope (Jeffrey Pope, CMI)]

Nothing has changed. PVC is not allowed for TPR discharge. Sediment traps are required by some codes and most manufacturers, but not all.

[jgromkoski (John Gromkoski, License No. 16000020183)]

@jpope

Nothing has changed. PVC is not allowed for TPR discharge. Sediment traps are required by some codes and most manufacturers, but not all.

Whew! Thought I missed something. Thanks Jeff.

[jmckee (James McKee)]

with the popularity of the big box stores and their “installation Kits”…you just never know what You are going to find…

[jgromkoski (John Gromkoski, License No. 16000020183)]

Very much agreed James. That’s why we do what we do.