Travels with ted
Empty the RV's gray and black tanks. Flush the black tank clean. Then, drain the fresh water tank
With your gray tank dump valve(s) open, open all faucets inside to drain any residual water.
Drain the water heater by removing the plug & opening the pressure relief valve. Then, turn on the water heater bypass.
Pump nontoxic RV antifreeze through your water lines, using the winterize setting on your RV.
Pour one cup of nontoxic RV antifreeze into the kitchen sink drain, bathroom sink drain & shower drain.