OP
I have only filled the bank once with ean32. I have 4) 444cf 4500 cylinders and 2) dual rated 5250PSI/7000PSI ASME cylinders. All filled once to EAN32 @4500psi. After doing it I discovered a leak in the ASME cylinders and ended up venting those 2 to replace the o'rings in the end bushings. I then just mixed in straight air reducing the o2 over time. Last I tested the bank it is sitting at ean23. My bank is split up it 3 banks of 2 cylinders each pumped to 4500. After going through 2.5 K cylinders of o2 I decided to look at other options. This whole compressor(s) sticks and cylinder storage is all new to me. Learning a bunch from you guys. I am now realizing once I am full, I would not need as much o2 to maintain as I did for filling from atmosphere (actually filled after fresh hydro on the 444cf cylinders.
Ghettobrane. Now you're speaking my language. I have 2 independent circuits in my shop. I have the main feed ( newly installed) which is 50A 220 1ph. It runs my lathe, mill, lights, outlets, and 10hp 5406 compressor. The compressor consumes 99% of that 50A breaker. When running the HP compressor I have to turn off the overhead lights or I pop the breaker. The old original 15amp drop to the shop is mostly unused now. Ill have to look at the current draw of the concentrators. Stacking up concentrators into a stick may be the ticket. If I don't have enough AC power I may be forced to go down the bank o2 route. Which also sounds fun. Compressing high o2 content does scare me a bit. Will look at your other threads on this subject.
