Originally Posted by garbonz
Leave plenty of water in the tank after the flush, flush vigorously. Consider installing a really good spray flush system and use a wand in the toilet occasionally to keep the residue down to a minimum.
Camco 40126 RV Tornado Rotary Tank Rinser with Hose
Garbanz, thanks. We have the hose connectIon to flush out tank.
After emptying, I fill for 4 minutes, drain and then Donita again.
Ithen add about 45 seconds of water an DW treats it with the carbon and fab.
From what you are saying it should be ok even if not traveling.