oxygen tank has water in it, ruined my conserving device a Devilibs PD 1000, I expect it to be replaced or repaired ASAP I am house bound until I have my device back' To be clear I want my Devilbis PD 1000 not one of your crap Bonsi or any other chad drive units!!! My phone number is [protected]. I just got a pop up saying my post was too short and would probably not be resolved, so I'll continue, the problem with the Chad Drive devices is they DO NOT dispense enough oxygen per puff. I do an welLness class 2 time a week, I am on 3 liters on one machine 4 liters on the treadmill. I tried a chad drive unit I was at 5 liters and my stats were way low, my oxygen was at 88-89 instead of 93 OR 94