Black tank

[DEBailey]

How do u go about cleaning your black water tank on regular trips? We really don't want a stinky bathroom.

[palominoryda]

Put some ice down your toilet and it will slosh around and clean sensors and bottom of tank as it melts while you drive.

[Black]

Same way as previously answered on your other post.
Black

[Wiscampsin]

And start with water in the tank before you flush.

[bikendan]

we always have a minimum of 5 gallons of water with Odorlos added.

never had a smell.

do use the ice method and have a spinning wand sprayer i put down the toilet to break up stuff, before final dump.

[DEBailey]

So even after you dump and if camper is sitting for a while before next use we should keep some water and chemical in tank?

[Arefbee]

Except over the winter we always keep a couple gallons in the tank. After a tank dump I add a couple of gallons and some Calgon. Driving with that mixture agitates the tank like a washing machine.
If you want a very good method, search the Geo method.
I have had good success with it. Keeping a little water in the bowl really keep any odors in there instead of the trailer.

[Taranwanderer]

I use the geo method as well. What I also do: when getting ready to leave the CG and it's time to dump (regardless of levels in tanks,) I'll fill the tanks with water--open a water tap for gray and use a stick to open the pedal valve on the toilet. Fill, then dump. Then, I fill again with clean water, dump both again. Then put a little water and chemicals (and ice if desired) for the ride home, and you're ready for the next trip. It takes a little longer (all the filling and dumping,) but my tanks are clean and I've never had any odor doing it this way.

[bikendan]

Originally Posted by DEBailey

So even after you dump and if camper is sitting for a while before next use we should keep some water and chemical in tank?

YES!