Are you guys having different tanks that what i have around here? or am i doing something wrong? All our tanks come with an air bladder in them precharged from the factory at 40psi. I usually leave that alone and just install it. Should i be changing that?
theron, if you read the installation manual that comes with the expansion tank, it will explain this important step. if you leave the pressure set to 40#, it's like installing shock absorbers meant for a small car onto a truck.
the air bladder will be compressed by the higher water pressure and will not have enough space, volume to properly do the job it was intended for.
sure, it's better than having no expansion tank, but an extra couple of minutes worth of time and a bicycle pump will correct this to a factory spec.
I had no idea. The last master i worked for before roto rooter just said to leave it be. And the two masters i spoke to in the shop just said it wasn't really necessary and that if you put too much air in you can pop the bladder. I'll have to read the manual next time i get one. I keep a small air compressor on my truck for air tests, so it's not like it would take any more tools or time. So what is this static pressure business? what it the proceedure for properly setting it up? I assume i install it just like regular and just adjust the air in the tank to a specific level based on the water pressure, but you mentioned earlier about a faucet or hose bibb being open.