Pleased with the tank so far
The only quibble I have is that the online instructions describe installing the tank with a saddle valve, but the model I got required a 3/4 inch fitting. I had to get different fittings after I got the unit and saw that it was not as described in the online instructions. Other than that, the tank was easy to install and appears to be good quality. It has solved the problem I had with pressure build-up when water heated up. I am hoping it will have a long lifetime.
Solved the Problem
If you can sweat copper fittings, this is a quick and easy install. Did buy a water gauge to ensure I knew what the max pressure my system was seeing over a day, which cause me to increase the as shipped air pressure in the tank. However, I have not had another drip from my hot water heater relief valve. Only time will tell durability of this tank.
100+lbs of pressure down to 40 lbs. USA made and the longest warranty!!
My pressure gauge was pegged at over 100 psi. It blew my water heater. I called my municipal water company and was told that street pressure should be no more than 80 psi. I told them there was something wrong because my meter (inline before my regulator) was reading 100+ psi. They turned it down and my regulator read 80 psi. The next day they turned it back up to 100+ psi. saying people up the hill were complaining of low water pressure and they told me I needed a new regulator. I put in a new
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regulator and installed a second pressure gauge (with max pressure needle) behind the regulator. Water pressure after the regulator was 40 psi. Good right? Not quite so. Every morning the max capable gauge behind the regulator read 100+ psi. It took me a few days to figure it out. This winter in the northeast has been so cold, the water temp from the main was 35 degrees. Once inside the house, and with the furnaces and water heater running so much, the temperature increase created a large amount of thermal expansion. I installed the unit and my pressure has not risen over 42 psi since. Fantastic! At the same time while everything was off, I also plumbed it so I can easily add a water softener in the future. BONUS! This year for the first time the water line to the refrigerator/ice maker was leaking from the bottom. I thought the pump or something was gone. When I told my wife how good the expansion tank was working, she said maybe high pressure was why the water line to the refrigerator was leaking. Although I didn't think of it, it made perfect sense. Sure enough, I turned the water line back on and no more leaking. That saved me hours looking for the problem and maybe buying a new pump. I think I'll keep both the expansion tank and my wife! Thanks honey :)
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