Thor Forums

[wayneroe]

I filled my fresh water about 2/3 full before leaving home four days ago. WE hadn't used it much and it was still showing 2/3 full when we stopped last night. This morning it was full and venting water through the overflow. I opened the fresh water fill port and water flowed out for about a minute. Have any of you had this happen and have an idea where the extra water might have come from? I am not a water system expert, but am wondering if maybe there is a valve that didn't shut off when we started the city water at the RV park and city water was flowing into the fresh water tank as well as into the coach's water system.