Originally Posted by
roverrescue
Just to add an idea to your bulk purchase.
My tank is Al not plastic but this should still work.
-Just have two 12mm hose tails installed, one at the bottom the second at the top of the tank.
-Bottom hose tail goes to hose that you setup as your supply tap.
-Top hose tail uses a "quick connect" to your air compressor with a ball valve.
To fill tank disconnect "quick connect", attach hose to tap and fill tank until water comes out "quick connect".
Instead of pump, run air comp for a few seconds to pressurise tank, tap will pressure feed. Just watch the amount of pressure you apply!!!! Works well for us, a blast from the compressor will keep tank pressurised for many many litres. No hassle with pumps, pressure is good for lots of jobs!
S