Your RV water system begins at the point where you connect to the park's water spigot. As with every other system in your rig, it requires regular maintenance.
When we first started RVing we knew that it was a must to use a water filter to filter ALL of the water entering our rig. Not just for drinking but for ALL uses. A sediment filter helps to protect your water heater, toilet, shower, faucets, and ice maker, if you have one installed.