B.O. Plenty wrote:
No need to fill the tank. The solids are on the bottom. I run my flusher while watching what comes out through a clear fitting at the start of the hose. I may close the valve briefly during the process but only for a minute or so. Been doing it this way for many, many years. Never a problem. As far as the gauges go, I never pay any attention to them as they never work.
B.O.
You fill the tank because the mass of water above the solids creates a swirling action like when you flush the toilet and helps pull a *lot* of additional solids out. I have a clear elbow and see lots of additional material come out when I fill the tank and drain it as opposed to just letting the flusher run.
