Residual water in black water tank

Steve 911 wrote:
Newbe question I'm sure has been answered before. What is the rule of thumb of how much water to put in the black water tank after you finish dumping the tank?
And what is the way most people add the water? ie; hose, bucket etc.
Thanks for any response.
Steve

Two different situations: Are you actively using the camper after dumping? or storing it for awhile before the next trip?

If I am actively using our camper, after dumping I'll fill and flush the toilet a couple times while adding some toilet deodorizer (usually the green stuff from Walmart). So this would be 2 or 3 gallons of water.

If I am storing the camper... when we get home, I rinse out the tanks by filling and draining them (I am able to do this where I park it - this is assuming I have already "dumped" the tanks at the campground dumpsite). Then I fill the black tank while adding maybe a quart of chlorine bleach - or less, don't need all that much. I let the tank sit for about an hour, then drain it out. I'll fill the tank maybe 1/4 full and drain one last time. I have found that if I store the TT for an extended period without using it, it sometimes will smell inside if the black tank isn't "bleached".