frankc420
Contributor
The last time I had my tanks filled, which was about 1.5-2 months ago, they were filled to 3200psi, the temp was about 55-60, maybe less at the time. I was told that once the heat in the tank dropped, the psi would drop with it.
Well, I brought them home and stored them, I'm going diving this weekend so I wanted to check my seals and my new transmitter on my 1st, so I hooked up to both tanks and both were reading 3500psi. I drained them to 3200 and put the cap back on (wasn't too comfy with them reading 3500..) Funny thing, I'm going to guess the air temp between my storage room and carport is about 10-20 degrees difference, so after I drained out the 300psi from each tank, they started going back up again?
So the question stands, should I have left the tanks alone and been happy with the extra? Or did I do the right thing by releasing some of the pressure? I obviously don't know too much about my own tanks... I do know my 1st stage is rated to 3500psi (It's on the stage) and the valve is rated to 3000psi.. I don't know how much extra they can hold, that's why I was nervous about it!
Well, I brought them home and stored them, I'm going diving this weekend so I wanted to check my seals and my new transmitter on my 1st, so I hooked up to both tanks and both were reading 3500psi. I drained them to 3200 and put the cap back on (wasn't too comfy with them reading 3500..) Funny thing, I'm going to guess the air temp between my storage room and carport is about 10-20 degrees difference, so after I drained out the 300psi from each tank, they started going back up again?
So the question stands, should I have left the tanks alone and been happy with the extra? Or did I do the right thing by releasing some of the pressure? I obviously don't know too much about my own tanks... I do know my 1st stage is rated to 3500psi (It's on the stage) and the valve is rated to 3000psi.. I don't know how much extra they can hold, that's why I was nervous about it!