not-a-plumber
Member
Daughter's house built in 2009. Plumbing appears to be untouched and as installed and inspected 13 years ago.
Main line from water meter at the street comes into the crawlspace, runs across the bottom of the joists, 3/4" tee to 2 gallon expansion tank, and then up to the water heater closet on the first floor where there is the main shutoff valve and a pressure regulator. So the expansion tank is on the unregulated side of the pressure regulator and before the main shutoff valve.
The tank is unsupported, just hanging on the PEX tee and feels heavy and full.
If could just be low air pressure, but I am going to replace the tank and support it properly.
I will look and see if any outside faucets are unregulated (probably not) and try to get pressure readings on both sides of the pressure regulator. If no outside faucets are unregulated, I will only be able to get a reading of the regulated side.
Questions:
Is this an acceptable location for the expansion tank?
Since it is on the unregulated supply side of the pressure regulator what pressure should it be set at?
In this location, can the tank serve as a thermal expansion tank for the water heater or does it serve a different purpose having to do with city water pressure?
Thanks
Main line from water meter at the street comes into the crawlspace, runs across the bottom of the joists, 3/4" tee to 2 gallon expansion tank, and then up to the water heater closet on the first floor where there is the main shutoff valve and a pressure regulator. So the expansion tank is on the unregulated side of the pressure regulator and before the main shutoff valve.
The tank is unsupported, just hanging on the PEX tee and feels heavy and full.
If could just be low air pressure, but I am going to replace the tank and support it properly.
I will look and see if any outside faucets are unregulated (probably not) and try to get pressure readings on both sides of the pressure regulator. If no outside faucets are unregulated, I will only be able to get a reading of the regulated side.
Questions:
Is this an acceptable location for the expansion tank?
Since it is on the unregulated supply side of the pressure regulator what pressure should it be set at?
In this location, can the tank serve as a thermal expansion tank for the water heater or does it serve a different purpose having to do with city water pressure?
Thanks