I went to a customer the other dayto replace the guts in her leaky toilets and replace a leaky faucet in the utility sink. The next morning she called me and told me that she had a leak in her utility closet and she thought it was the water heater. I determined that the water was coming from the pressure relief valve. I saw the check valve on the water main and figured that her expansion tank must be shot. To my surprise there is no expansion tank. So I guess her leaky toilets and sink kept the pressure released, so when I fixed her leaks the pressure built up and started coming out of the tank. My question is was there a period of time when check valves became code and there was no code for expansion tanks? I work in the Mount Laurel New Jersey area and I have never seen a house with a check valve and without and expansion tank. There are hundreds of units built the same way in this development. They must all have leaky toilets!
No announcement yet.
Water main check valve, no expantion tank