Minimizing lead risk with a rainwater system
I’m shopping for fittings and getting ready to begin installing our plumbing system. Although we are starting with a well, we hope to switch rainwater collection next year.
A friend had trouble with her rainwater system – the acidity of the rainwater was eating away at the copper plumbing in the house. The first sign of this was a hazy blue ring in the bathtub. She found that not only were lead levels high in her water, they were also high in her children! She addressed this by starting to maintain the pH levels in her cistern.
For this and other reasons, our house will be plumbed with PEX. I’ve been advised to use solid pipe for the plumbing on the pump and to the pressure tank, and then switch to PEX.
My question is, will we be safe using bronze at the pump, or galvanized if not? And, should I avoid metal PEX fittings?
I was advised against using PVC at the pump, because it could melt if the pump were to ever run dry and get hot.
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