Guides / Water Systems

Fresh Water Tank Fill

By Andrew Strick · Mobile RV technician, Brevard FL

Fresh Water Tank Fill

Fresh Water Tank Fill — RV repair diagram & parts reference
Fresh Water Tank Fill — RV repair diagram & parts reference

Types of RV Fresh Tank Fill Fixtures:

Gravity Fill Port:

This is the most basic type. It's a simple opening on the exterior of the RV, often with a threaded connection for attaching a hose. Gravity pulls water from the source (jug, campground tap) into the tank.

Combination Fill Port:

This versatile option combines both gravity and city water fill capabilities in a single unit. It might have separate threaded connections for each function or a diverter valve to switch between them usually located in a compartment.

Integrated Fresh Water Fill Panels:

Offer a streamlined and aesthetically pleasing option by combining a fill inlet, diverter valve (tank or city water selection), and potentially a pressure regulator or faucet into a single, dedicated panel (e.g. Nautilus).

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