What is likely the earliest year visible pumps started to move from a dry hose system to a wet hose system?
Service stations flipped order of gallon markers(0-10gal) and converted to wet hose system( 10gal-0) utilizing a newer squeeze nozzle handle.
Do we know when the squeeze nozzles were first being sold into the market?
I'm lost. I have 3 visible and I'm not understanding the wet/dry thing. My understanding was fill the cyl Use what was needed (drained from cyl) and what was left over went back into the storage below(drain line to tank)