Hot water Tank TRV?

Just did an inspection on a house where the hot water tanks TRV entered the wall is this acceptable? Directly on the other side was a shower stall.

No problem going to the wall HOWEVER, that product is not allowed for a TPR drain line. I just talked with Watts Tech Support and they confirmed it is not allowed for that application.

Thanks Stephen, When your talking about the product are you talking about the hose used?

Yes, I believe he was


Reduction in internal size is the issue and I don’t think they can withstand the required 150 psi.