Larry -
I can't imagine how the source of water (city vs pumped from the tank) could cause a leak. The only difference should be the pressure from each source. If either one were really high, I suppose it could cause a selective leak. Can you find a way to check it?
If I read correctly, Bill Miller's leak occurs only when he has one of the faucets turned on. Is your situation the same? Or does it leak all the time?
Maybe the vibration from the pump travels up the pipe and causes an intermittent leak? Does your leak even when the pump is not running?
Bill
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