RVs have a pretty straight-forward plumbing system. Freshwater comes from either a direct campground faucet hook-up or the onboard fresh water holding tank. Water is heated by the water heater and sent to the faucets either by water pressure from the campground faucet or by the onboard water pump.RVs have a pretty straight-forward plumbing system. Freshwater comes from either a direct campground faucet hook-up or the onboard fresh water holding tank. Water is heated

How does a RV water system work?

0:285:00How does an RV Water System Work - YouTubeYouTubeStart of suggested clipEnd of suggested clipOr it comes through the city water connection which bypasses the water tank and go straight into theMoreOr it comes through the city water connection which bypasses the water tank and go straight into the water system having no need for the water pump.

Where does RV waste water go?

All of the waste from the RV toilet empties into the black tank (the rest of the waste water from the RV showers and sinks empties into the gray tank). Black tanks vary in size anywhere from 15 gallons to 50 gallons.