When camped at camp grounds do you
Leave your gray or black water valve open? I always leave black tank closed and grey water open until we are going to leave. Meaning a day or two in the grey water tank to flush out after draining bl...
Forum Discussion
All three closed until ready to dump. We have one of those whirly-gig thingies in the black tank. Black gets dumped first. Run the black flush whirly while dumping and leave it run until water runs clear. Then close the black and dump the grays, doesn't matter which goes first - sometimes both at same time. As others have said, that cleans out the sewer slinky. Then close the grays and go relax. We usually dump every couple of days when staying for a longer time. Use same procedure every time we dump. I know several folks who leave the grays open and close them the day before leaving to use after dumping the black. I don't do that for a couple of reasons. 1) I would forget to close them the day before. 2) I don't like the idea of leaving the grays open to the sewer system. Never had a problem but anything is possible I suppose.
