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J-Rooster's avatar
J-Rooster
Explorer
Sep 01, 2016

Self Contained Fresh Water Tank Accident

Hello everyone, I filled the self contained fresh water tank in my Winnebago Adventurer at 2/3 full yesterday! The DW went out to the RV today and turned the water back on from our house faucet to the RV. I forgot to reset my tank switch from self contained fresh water fill to City Water. My wife left the RV to come back inside our house. A neighbor came knocking on my front door to tell me water was leaking from my RV. There is a water overflow valve on top of the self contained fresh water tank to which the overflowing water was escaping. I also had water coming out my fill tube on the other side of the coach from where the hose was hooked. This tells me more water was coming into the fresh water tank then what was coming out of the fresh water tank overflow valve. We discharged water from the fresh water tank drain valve under the tank to make sure no more water would be going out of the overflow. We inspected the RV for water damage and couldn't find any! Is there anything else that I should check for or can I go buy a Lottery Ticket?

26 Replies

  • Ed_Gee wrote:
    J-Rooster wrote:
    Hello everyone, I filled the self contained fresh water tank in my Winnebago Adventurer at 2/3 full yesterday! The DW went out to the RV today and turned the water back on from our house faucet to the RV. I forgot to reset my tank switch from self contained fresh water fill to City Water. My wife left the RV to come back inside our house. A neighbor came knocking on my front door to tell me water was leaking from my RV. There is a water overflow valve on top of the self contained fresh water tank to which the overflowing water was escaping. I also had water coming out my fill tube on the other side of the coach from where the hose was hooked. This tells me more water was coming into the fresh water tank then what was coming out of the fresh water tank overflow valve. We discharged water from the fresh water tank drain valve under the tank to make sure no more water would be going out of the overflow. We inspected the RV for water damage and couldn't find any! Is there anything else that I should check for or can I go buy a Lottery Ticket?


    A common problem. Sounds like you did all the right things. In all likelihood there will be no problems. I always turn my water refill valve to city water before turning off the water fill source so as to avoid this issue.
    I hear you Ed and here comes my National Anthem "I'll never do that again"
  • Mandalay Parr wrote:
    My water overflow goes straight to the ground with nothing else getting wet.
    My coach is the same type of system all the water went to the ground not in the storage compartments.
  • Water damage will not show right away. Usually takes months of constantly wet wood to rotten.
    If you have moisture trap between the walls, floors and tanks, the process started.
    Remove whatever you can from RV and keep doors open for few days.
  • J-Rooster wrote:
    Hello everyone, I filled the self contained fresh water tank in my Winnebago Adventurer at 2/3 full yesterday! The DW went out to the RV today and turned the water back on from our house faucet to the RV. I forgot to reset my tank switch from self contained fresh water fill to City Water. My wife left the RV to come back inside our house. A neighbor came knocking on my front door to tell me water was leaking from my RV. There is a water overflow valve on top of the self contained fresh water tank to which the overflowing water was escaping. I also had water coming out my fill tube on the other side of the coach from where the hose was hooked. This tells me more water was coming into the fresh water tank then what was coming out of the fresh water tank overflow valve. We discharged water from the fresh water tank drain valve under the tank to make sure no more water would be going out of the overflow. We inspected the RV for water damage and couldn't find any! Is there anything else that I should check for or can I go buy a Lottery Ticket?


    A common problem. Sounds like you did all the right things. In all likelihood there will be no problems. I always turn my water refill valve to city water before turning off the water fill source so as to avoid this issue.
  • that happened to me once. i had water in two of the exterior storage compartments. you might check yours.