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Bathroom floor is flooded but the tanks aren't full

k8devin
Explorer
Explorer
I have a 2003 Chinook Concourse and I'm distressed that my bathroom floor is flooded but my tanks aren't full...they're maybe half full, so they shouldn't be overflowing. Could this be a clog? And how do I get rid of it?
25 REPLIES 25

Bobbo
Explorer II
Explorer II
bsinmich wrote:
cgmartine wrote:
k8devin, even if the tanks are empty, when you are hooked up to a water source, in most motorhomes, it bypasses the tanks and the water flows directly to your faucets. The tanks are only filled from the fill point outside the motorhome. This is where you have a small door that you unlock and insert the end of the water hose and let water flow in until you determine the tanks is full. Since you did not say if you are indeed connected via a hose to a water source like a spigot, I have to assume that is what might be causing the leak because it would create a constant flow of water into the motorhome, which would occur irrespective of whether the tanks are empty, or half empty, or full.

I think most newer MHs have a valve that switches to fill the tank and the hookup is the same position for everything. I haven't had a separate spot for filling from a hose since my '76 Fireball.

And yet my 2007 Winnebago has a gravity fill opening, but no way to fill from the shore water inlet. This one is an assumption that it is not safe to make.

To the OP, until you find the source of the water, nothing is going to work but a mop.
Bobbo and Lin
2017 F-150 XLT 4x4 SuperCab w/Max Tow Package 3.5l EcoBoost V6
2017 Airstream Flying Cloud 23FB

bsinmich
Explorer
Explorer
cgmartine wrote:
k8devin, even if the tanks are empty, when you are hooked up to a water source, in most motorhomes, it bypasses the tanks and the water flows directly to your faucets. The tanks are only filled from the fill point outside the motorhome. This is where you have a small door that you unlock and insert the end of the water hose and let water flow in until you determine the tanks is full. Since you did not say if you are indeed connected via a hose to a water source like a spigot, I have to assume that is what might be causing the leak because it would create a constant flow of water into the motorhome, which would occur irrespective of whether the tanks are empty, or half empty, or full.

I think most newer MHs have a valve that switches to fill the tank and the hookup is the same position for everything. I haven't had a separate spot for filling from a hose since my '76 Fireball.
1999 Damon Challenger 310 Ford

tenbear
Explorer
Explorer
K8, Does the water on the floor smell or is it fresh water? Can you tell if it is water from the black tank by its appearance and or smell? Is your shower overflowing?

If none of the above, you probably have a leak in the fresh water system.
Class C, 2004/5 Four Winds Dutchman Express 28A, Chevy chassis
2010 Subaru Impreza Sedan
Camped in 45 states, 7 Provinces and 1 Territory

Sprink-Fitter
Explorer
Explorer
cgmartine wrote:
k8devin, even if the tanks are empty, when you are hooked up to a water source, in most motorhomes, it bypasses the tanks and the water flows directly to your faucets. The tanks are only filled from the fill point outside the motorhome. This is where you have a small door that you unlock and insert the end of the water hose and let water flow in until you determine the tanks is full. Since you did not say if you are indeed connected via a hose to a water source like a spigot, I have to assume that is what might be causing the leak because it would create a constant flow of water into the motorhome, which would occur irrespective of whether the tanks are empty, or half empty, or full.


He said his black and grey tanks were not full, not his freshwater tank.
2006 Coachman Adrenaline 228FB

2012 Can Am Commander XT 1000

cgmartine
Explorer
Explorer
k8devin, even if the tanks are empty, when you are hooked up to a water source, in most motorhomes, it bypasses the tanks and the water flows directly to your faucets. The tanks are only filled from the fill point outside the motorhome. This is where you have a small door that you unlock and insert the end of the water hose and let water flow in until you determine the tanks is full. Since you did not say if you are indeed connected via a hose to a water source like a spigot, I have to assume that is what might be causing the leak because it would create a constant flow of water into the motorhome, which would occur irrespective of whether the tanks are empty, or half empty, or full.

NoVa_RT
Explorer
Explorer
Hmm..well, my monitors are telling me the tanks (both black and grey) are only 1/2 full..wouldn't they be showing as full if this was a leaking issue?

Many RV tank monitors are unreliable. See if emptying your tanks helps.
2013 RT 190-Popular

k8devin
Explorer
Explorer
Hmm..well, my monitors are telling me the tanks (both black and grey) are only 1/2 full..wouldn't they be showing as full if this was a leaking issue?

cgmartine
Explorer
Explorer
Do you have your hose connected to a shore water source? If you have a water filter, check under the sink and make sure it is not leaking. I had a similar problem. Make sure you also don't have a secondary water filter under the bathroom sink. The pressure of the water coming in caused a very small leak in the water filter, which overnight, filled up the bottom of my kitchen cabinet. Yours may be doing the same thing, and leaking over to the bathroom floor. The tanks are normally under the floor, so you shouldn't have a leak above them. Also check to make sure your water pump is not on and perhaps leaking.

kyonu
Explorer
Explorer
I just had an issue where the flushing mechanism was broken and leaked water each time I flushed. Check the back of the toilet where the water goes into the bowl, and scope the whole mechanism to see if it is leaking.

Old-Biscuit
Explorer III
Explorer III
From your other post which will probably get closed.


Where is water coming from?

How do you know tanks aren't full.........because level monitor doesn't show full?

Water is either leaking from a fitting under sink, leaking from toilet water valve, coming up thru shower drain, coming up thru toilet and leaking from ceiling exhaust fan if heavy raining is going on.

Locate where water is coming from.....then you can figure out how to stop/fix.
Is it time for your medication or mine?


2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31

WyoTraveler
Explorer
Explorer
black, grey or both?