Quote:
Originally Posted by Brad-tv
I think a big reason so many tanks fail here in the villages is from improper installation. When these tanks are installed the expansion tank pressure is supposed to be set to match or be just below the house pressure. When these tanks are new they are pre set to approximately 40 psi off the shelf. Most homes here average about 60-70 psi or higher. I believe this will shorten the life of the bladder if not set properly prior to installation. We have seen tanks fail anywhere between 3-5 old and they should last 7 years. If I had a tank that was 5 years old and it tested good it would definitely be on my list to change for preventative maintenance.
Also if you have no filter and straight chlorine hitting the rubber bladder that will shorten the life also. The chlorine level in the villages is at 1.5 and this is almost 6 x higher than up north.
Spread the word help your friends and neighbors out hardly anyone knows they have a expansion tank let alone how to test them annually.
Btw it’s Florida code to have one for the last 20 years ( I believe)
|
Thanks for the information, so if replacing an expansion tank, should the tank be charged to 60 psi or 40 psi? I don't see an easy way to determine the system pressure to be able to match it in the expansion tank.