A common question from new RVers is whether you should leave your water turned on when you’re away from your campsite. I think you shouldn’t. And here’s why.

RV Water Supply System 101

First of all, your RV has two sources of water:

• An onboard freshwater tank,
• And a city water hookup.

If you have a simple RV, you probably connect to city water using a simple water inlet like this (see below). And you use a larger water inlet, like this (see below), for filling up your freshwater tank with a freshwater hose with garden-hose threads.