This may sound silly to the old timers.... How do I drain my fresh water? i assume i just run the faucets, let it drain in grey water tank and dump it? I am not too keen on the whole sloshing effect w...
In-laws did have a very old Teri TT they remodeled. I had no drain in the tank. All they could do was to run the pump until it pumped no more.
Unless your camper is 50 years old, it should have a drain outlet under the camper. If no (which is entirely possible ... perhaps), the only alternative is to run with your pump until it pumps no more water, into the black and/or gray tank and dump the black/gray tank.