Need advice help please made cardinal mistake

[rtaylor0830]

I made the cardinal mistake by turning on black tank flush with valve closed and walking away. I came back to water running out of bottom of camper. I cut some holes out of the insulation to get the water out. My question is there was Somme water around the toilet but not as much as I would have expected so where did all the water in the underbelly come from. I put about a quarter tank of water back in the black tank and see no water dripping anywhere underneath. Any ideas and is there any thing else I need to do.

[Paul_Clancy]

All fun till somebody gets poop water up to their ankles. Of course do as you will. Yours to lose for sure.

[larry_barnhart]

Cummins12V98 wrote:

larry barnhart wrote:
12V98 it is like everybody needs a hard hat on construction jobs when some don't really need that protection as you understand the big picture is "it is what it is" Did you see the rv and truck fire picture from Mount Vernon?

Sad deal but also a lucky deal for them.

chevman

Did not see it. Was thru there yesterday.

Yea was out in the middle of a field once laying out a for a new building, just me and another guy. We had to wear hard hats!

[Cummins12V98]

larry barnhart wrote:
12V98 it is like everybody needs a hard hat on construction jobs when some don't really need that protection as you understand the big picture is "it is what it is" Did you see the rv and truck fire picture from Mount Vernon?

Sad deal but also a lucky deal for them.

chevman

Did not see it. Was thru there yesterday.

Yea was out in the middle of a field once laying out a for a new building, just me and another guy. We had to wear hard hats!

[larry_barnhart]

12V98 it is like everybody needs a hard hat on construction jobs when some don't really need that protection as you understand the big picture is "it is what it is" Did you see the rv and truck fire picture from Mount Vernon?

Sad deal but also a lucky deal for them.

chevman

[Cummins12V98]

Paul Clancy wrote:
Or just leave the black valve open while the rinser is working (as the instructions say). You can easily total off an Rv with a sewage flood. Not worth the extra tank cleaning. I agree with the poster who said get your insurance involved.

Of course they say to leave the valve open. Just like all hitch makers say to do a pull test.

It's called CYA

[Paul_Clancy]

Or just leave the black valve open while the rinser is working (as the instructions say). You can easily total off an Rv with a sewage flood. Not worth the extra tank cleaning. I agree with the poster who said get your insurance involved.

[Cummins12V98]

Your vent pipe is probably not connected to the vent at the roof. So when the water rose up the vent pipe it just overflowed back down the outside of the pipe to the underbelly.

To AVOID this from happening I use the timer on my cell phone. Before the cell phone timer I would keep my hand on the RV so I would not get distracted and walk away and have a big problem.

[1L243]

Some manufacturers drain the bathroom sink into the black tank. Could the water have come from there?

[Old-Biscuit]

rtaylor0830 wrote:
I pulled the bottom out and there are no leaks and everything works fine when I use the toilet and the tank flush guess I was lucky but on a side note my keystone cougar is suppose to have a polar package and there is no insulation besides the underbelly material and a thin layer of bubble wrap

That is the polar package.

*1/4” polypropylene enclosed underbelly
*Astro-Foil insulation barrier (R-15)
*2” heat duct from furnace into underbelly
*Heated, enclosed water lines

Per Keystone
Cougar has been zero degree tested. The Polar Package Plus allows you to camp to zero degrees without worry of your tanks or water lines freezing up.

We also add upgraded insulation to our slide-out floors to control the hot and cold exchange and unlike our competition we merge our skirt metal to the I-beam for complete enclosure of your fifth wheel underbelly

[Lynnmor]

So where did the water come from? Maybe the toilet flange when the tank is full? Before you button it up, better fill the tank all the way up into the toilet.

[rtaylor0830]

I pulled the bottom out and there are no leaks and everything works fine when I use the toilet and the tank flush guess I was lucky but on a side note my keystone cougar is suppose to have a polar package and there is no insulation besides the underbelly material and a thin layer of bubble wrap

[Duke-44]

It sounds like you really have a mess (pun intended) on your hands. If you have broken seals, valves, seals or tank and you probably should drop the bottom cover and replace the it and the insulation. It probably needs to be taken care of by someone that knows what they are doing.
I think I would turn it over to my insurance.

[Lynnmor]

If the roof vent is installed properly there will be very little pressure in the black tank. The leak the OP experienced came from poor installation, design or faulty materials.

[mlts22]

Merrykalia wrote:
I did the same thing and when I came back, sewer water was running down my awning!! I washed and cleaned and washed some more and finally got rid of the smell.....until it rained again!

I was at a CG once where someone was deliberately flushing their black tank out the top vent... said it did wonders for washing the top of their rig. Apparently, they flushed the black tank as normal, added detergent to it, then let it go out the top vent.

I am actually amazed that the toilet or other plumbing didn't crack or leak with ten feet of head pressure on it.