mavdog
Contributor
I thought the water was just to keep the tanks cool. less stress on the metal my LDS fills the tanks in water. We just use a whip for Scuba tanks. For SCBA they spin inside the machine. The old system the tank slid inside a container we had one tank pop the valve out taking the fill hose with it. It hit the ceiling scared the hell out of the firefighter that was filling it. We did have a new guy blow a preasure disc once filling another depts tanks 3000 lbs disc will not make it to 4500lbs.