Flooded bathroom

Sounds like bathroom sink drains into black tank and you overfilled it which then leaked out from toilet....either around floor flange gasket or toilet pedestal

Leaving faucet trickle is not a good idea to begin with.

Furnace running/maintaining a comfortable temp inside rv works.
Opening lower cabinet doors at night helps increase warm air circulation around pipes

IF you can't keep trailer plumbing above freezing then drain system

All I can say is dry it out as fast as possible campers don't take to water like a brick and mortar. Just pray that the luan flooring and the bottom of the walls didn't get soaked, it don't take much water to destroy this kind of construction. Unfortunately this is the way most trailers are built. Good luck.

A trickle of water exiting via the sewer hose will eventually result in a total freeze up via ice layering.

Oh, dear. Any chance you have insurance?? That would be call #1, otherwise, plus get a wet vac and start. Fans and heaters...once you have a good dry area or on top of a cabinet. Good luck.

Anyone that lets water run to prevent freezing in an RV should have a water alarm.

https://www.google.com/#q=water+alarm+sensor&tbm=shop

Sounds weird.
The bathroom sink should drain into your gray water tank, and then if that got full it would have come up in your bath tub.

Do you have a gray water tank ? If yes, someone screwed up your bathroom sink drains plumbing.

Jack L

Old-Biscuit wrote:
Sounds like bathroom sink drains into black tank and you overfilled it which then leaked out from toilet....either around floor flange gasket or toilet pedestal

Leaving faucet trickle is not a good idea to begin with.

Furnace running/maintaining a comfortable temp inside rv works.
Opening lower cabinet doors at night helps increase warm air circulation around pipes

IF you can't keep trailer plumbing above freezing then drain system

Absolutely correct. Any person living in the west can tell you even waterfalls and moving bodies of water can freeze. That water trickle not freezing is a myth.

While moving water can most certainly freeze I think the idea is the moving water will bring some heat from the source to avoid freezing. Not sure why people run the cold water.

Sorry to hear this happened. I'm picturing you had the gray drain valve open and went to sleep feeling that everything was taken care of. Definitely get it cleaned up as quickly as possible to prevent as much damage as you can.

It's too bad the manufacturers don't advise you that they have plumbed the bathroom sink this way. but I guess that warning is only good for the original purchaser anyway. I'll bet that the kitchen sink drains properly into the gray tank, but I would verify that before trusting it.

WyoTraveler wrote:

Old-Biscuit wrote:
Sounds like bathroom sink drains into black tank and you overfilled it which then leaked out from toilet....either around floor flange gasket or toilet pedestal

Leaving faucet trickle is not a good idea to begin with.

Furnace running/maintaining a comfortable temp inside rv works.
Opening lower cabinet doors at night helps increase warm air circulation around pipes

IF you can't keep trailer plumbing above freezing then drain system

Absolutely correct. Any person living in the west can tell you even waterfalls and moving bodies of water can freeze. That water trickle not freezing is a myth.

You might want to tell my spring water at elevation 3200 feet that.
Any time the temperature is below 26 degrees with a high wind, I open the bathroom shower faucet and let a little stream of water run.
I have the plug out of the trap and have it piped out to the side of the cabin. Many nights and days it is below zero with wind chills way below that and it never freezes. If I didn't do that the pipe coming down from the spring would freeze solid.
It is the same principal and is not a myth

Jack L

jack L