CaptainPanda
Registered
Hi, all, as the title suggests, I have a question regarding the tank fills at my LDS. I have a steel 100 tank that I use all but exclusively.
As far as I understand, the shop does a sort of quick fill method; they overpressurize the tank, and then cool the tank in water so that, when cool, it should be at the rated pressure of the tank, either 3000 for their 80s, or 3442 for my 100.
I've never had it filled to 3442 psi; I think the closest I ever came was 3000. I had a yearly visual done on the tank a few weeks ago, and when the tank was filled afterward, my SPG showed a pressure of 2500. I felt a little ripped off, but I didn't mention it to the LDS because it had been a couple of weeks since the fill that I went diving, and I'm not really sure I understand enough about the fill process to make an educated complaint.
This afternoon, I got another fill at the LDS for a dive planned for tomorrow. I just put the SPG on the tank, and it's showing a pressure of 2200. Am I right in thinking that something's wrong in this situation? I get it that pressure drops as the air cools, but it shouldn't drop that much, right? Am I missing something?
(I do plan on asking them if I can use one of their full tanks to check and make sure that it's not my SPG, but I thought I'd start here in the meantime)
As far as I understand, the shop does a sort of quick fill method; they overpressurize the tank, and then cool the tank in water so that, when cool, it should be at the rated pressure of the tank, either 3000 for their 80s, or 3442 for my 100.
I've never had it filled to 3442 psi; I think the closest I ever came was 3000. I had a yearly visual done on the tank a few weeks ago, and when the tank was filled afterward, my SPG showed a pressure of 2500. I felt a little ripped off, but I didn't mention it to the LDS because it had been a couple of weeks since the fill that I went diving, and I'm not really sure I understand enough about the fill process to make an educated complaint.
This afternoon, I got another fill at the LDS for a dive planned for tomorrow. I just put the SPG on the tank, and it's showing a pressure of 2200. Am I right in thinking that something's wrong in this situation? I get it that pressure drops as the air cools, but it shouldn't drop that much, right? Am I missing something?
(I do plan on asking them if I can use one of their full tanks to check and make sure that it's not my SPG, but I thought I'd start here in the meantime)