Hi all! We just bought a 1987 Ford American by Cobra motorhome last week. Everything in is in great shape and we took it out for the first time yesterday. We hooked in the city water and realized about an hour later that the bathroom floor was pretty wet. We unhooked the water and decided at some point later in the night to try and fill up the tank instead. Went to bed and the bathroom floor was still wet. I woke up in the middle of the night to find the whole aisle of the motorhome soaked. I used a Wet Vac at home and got about 4 gallons sucked up from the floor. Did we miss some valve that would have caused a flood like this? Could a leak even empty that much water in a matter of hours? I can't figure out how it dumped 4 gallons inside.

It does not matter where the source of the water is coming from.. It all goes thru the same plumbing system to the faucets.When you filled the water tank, did the water pump just start running when you were not running any water at all?It's now time to get in and check all the lines. Sounds like a leak in the lines for sure.Good luck!Mitch

If it’s in the bathroom, start looking there. Might be the toilet valve?And you need to get the water dried up. A dehumidifier or Dryer Bags and some fans to keep mold and mildew from starting.

Did you have a pressure regulator on the fill hose. High pressure can blowout RV plumbing fittings. Did you leave the pump turned on after filling the tank, you kept pressure on the supply lines? If yes that is why it continued to leak. You need to dry the floor and then turn on the pump and then watch where the area that the water is leaking from. You have to find the leak before you can repair it.A thirty year old coach will have a grey plastic water supply unless it has been replaced.

Big Katuna wrote:And you need to get the water dried up. A dehumifier or Dryer Bags and some fans to keep mold and mildew from starting.X2. Run a dehumidifier and a fan. You don't mold growing in your rig.

It might be the water supluy line going to the toilet or to the sink.Dry it up, turn your water pump Off and start over. Get some help if you need it.

RV floor flooded with water this morning | Good Sam Community

14 Replies

gbopp
Explorer
Jul 15, 2018
Big Katuna wrote:
And you need to get the water dried up. A dehumifier or Dryer Bags and some fans to keep mold and mildew from starting.

X2. Run a dehumidifier and a fan. You don't mold growing in your rig.
stickdog
Explorer
Jul 15, 2018
Did you have a pressure regulator on the fill hose. High pressure can blowout RV plumbing fittings.
Did you leave the pump turned on after filling the tank, you kept pressure on the supply lines? If yes that is why it continued to leak. You need to dry the floor and then turn on the pump and then watch where the area that the water is leaking from. You have to find the leak before you can repair it.
A thirty year old coach will have a grey plastic water supply unless it has been replaced.
Big_Katuna
Explorer II
Jul 15, 2018
If it’s in the bathroom, start looking there. Might be the toilet valve?

And you need to get the water dried up. A dehumidifier or Dryer Bags and some fans to keep mold and mildew from starting.
MitchF150
Explorer III
Jul 15, 2018
It does not matter where the source of the water is coming from.. It all goes thru the same plumbing system to the faucets.

When you filled the water tank, did the water pump just start running when you were not running any water at all?

It's now time to get in and check all the lines. Sounds like a leak in the lines for sure.

Good luck!

Mitch

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RV floor flooded with water this morning

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