Fresh water sensor went crazy. I think.

[Wbonsell]

Several days ago the fresh water sensor showed only about 1/3 full (100 gal capacity). We like to travel with a little bit in case of an emergency. Yesterday it was showing full! I know sensors for black and grey can go nuts, but fresh water?

Anyways, as far as I know we only have gravity fill capability so doubt the tank just filled itself. But possible? Have tried to find the fresh water drain but can't seem to locate a valve which will empty the tank. Is it possible that the water pump has to be on for the tank to be drained?

Unlike our old Bounder which had a very visible water tank, alas not the case with our Siena. I thought about just turning on the outside shower and dispensing water until pump no longer pushes water.

[Lt Dan]

Did it show full while hooked to city water? If so, you may have a leaking check valve inside your pump. Some of them can be rebuilt but others the whole pump has to be replaced.

[MSHappyCampers]

Bill, is there an outside door that gives you access to one end of the tanks? My freshwater tank is opaque so I can see the water level in it.