I heard you shouldn't use your fresh water hose to flush the tanks using the flush system, Why?
Lynn
To each, their own. If you use a different hose, do you need a different faucet too?
I mean if waste can get in the hose, then can't it get in the faucet?
A little common sense goes a long way.
Make sure the two flush valves are closed. Hook up a hose to the flush inlet. Turn on the faucet. Dump the black tank, when the flow thru the macerator slows, open the appropriate flush valve. Run for a minute or so, turn off flush valve, turn off macerator, close dump valves. Do the same for the grey tank.
As long as you follow this procedure, you will NEVER get waste water in the supply hose.
Now, when I can, yes, I hook up an old hose to the flush connector, but don't hesitate to use the city water hose when the faucet is more than 10 feet away (the length of my old hose).