Black Tank Problem

musicmole wrote:
I have a situation that baffles me. A year ago i replaced the water pump in my unit. Since then, if i forget to turn the water pump off while running down the road,

somehow my fresh water winds up filling up my bathroom sink

then overflows into my black tank which then overflows creating a disaster. If the pump is turned off, no problem what so ever.

The only way you can get fresh water to fill your bathroom sink is through the faucet. There just isn't any other avenue of flow. I don't think your pump is strong enough to build sufficient pressure to cause the water to flow through the valves and if it did, wouldn't it continue to flow water as long as the pump is on whether or not you are driving or standing still?

This is very perplexing....:h...and giving me a headache!

Ron