cj3 said:Also I have been very curious wrt the lack of use of expansion tanks in the plumbing in CA. Every person who I have asked who is in the trades has rarely if every seen or used one, but no one really new why when I explained the need for them when using a PRV.
CJ
For what it's worth, same situation here (Nebraska) - the word just hasn't gotten out here.
One plumber I talked to, when I finally diagnosed my foghorn-imitating, vibrating pipes and leaking WH T&P valve as a thermal expansion problem, recommended getting a higher-pressure WH T&P valve (!).
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