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wet bath toilet sealing

DaButcher
Explorer
Explorer
No luck finding answer using search.

Found out the toilet on my old T/C leaks onto the plywood underneath when using the shower. What is the proper way to seal? While at this repair I'll also seal the floor drain.
2021 Freelander 31MB Class C

NRA Life Member
15 REPLIES 15

DaButcher
Explorer
Explorer
Successfully tested today with toilet installed. Yes, I will seal the pipe, was waiting until I needed to open another tube of caulk.

okan-star wrote:
Thats about what I did to mine. I think the way the flange is supported by the black tank directly below the shower floor , with walking on the floor and filling , emptying the tank over time the leaks happen
Looks like your good for another decade or two

But you might want to seal that water pipe also
2021 Freelander 31MB Class C

NRA Life Member

okan-star
Explorer
Explorer
Thats about what I did to mine. I think the way the flange is supported by the black tank directly below the shower floor , with walking on the floor and filling , emptying the tank over time the leaks happen
Looks like your good for another decade or two

But you might want to seal that water pipe also

DaButcher
Explorer
Explorer
This should stop the leaking. I don't think it will be necessary to seal the bottom of the pot or the void in the back now.

2021 Freelander 31MB Class C

NRA Life Member

DaButcher
Explorer
Explorer
Tested and still have the leak. Removed the toilet and exposed the "pothole". Found the mess pictured below. Have it all cleaned up and will seal with................Dicor. May use some self levelling to fill in all the voids of the pan seal and around the edge with Non-Leveling

2021 Freelander 31MB Class C

NRA Life Member

DaButcher
Explorer
Explorer
.
2021 Freelander 31MB Class C

NRA Life Member

okan-star
Explorer
Explorer
I thought is was for breast enhansment

DaButcher
Explorer
Explorer
Yes Sir

mkirsch wrote:
Even if you declare victory, keep an eye on it because silicone is not designed to rumble down the road for thousands of miles. It's designed to be used on a house, which generally doesn't do much moving at all.
2021 Freelander 31MB Class C

NRA Life Member

mkirsch
Nomad II
Nomad II
Even if you declare victory, keep an eye on it because silicone is not designed to rumble down the road for thousands of miles. It's designed to be used on a house, which generally doesn't do much moving at all.

Putting 10-ply tires on half ton trucks since aught-four.

DaButcher
Explorer
Explorer
My toilet did have the void in middle back, same as the one mentioned in the link above. There was some sealant in there, but was no longer effective. Sealed the void good with silicone. I'll let it cure then fill the shower pan again with water to see if that's good enough or if not the toilet will have to be taken up and sealed all the way around.
2021 Freelander 31MB Class C

NRA Life Member

okan-star
Explorer
Explorer
When I bought a used Lance 500 the floor of the shower pan had a small leak around the toilet , the toilet is on a raised part of the shower floor . Thats probably what saved it from being much worse as far as damage .
On mine if you pull the toilet out theres a regular household type toilet flange that the toilet bolts down to , my leak was between the flange and the shower floor . I put a hose at this conection to confirm the leak , I could see under the shower floor from the compartment dr for the drain valves . You have somekind of acsess to that area because the shower drain Pee trap is right there also.
There are 3 or 4 screws holding the flange down , loosen them and seperate the flange from the fiberglass floor and squeese some sealant in ,tighten it down and run a bead of sealant around the flange , worked on mine. Good luck

DaButcher
Explorer
Explorer
Thanks for the link. I may have the same issue as it is a thetford, will check for the void in the back and probably pull it up and replace the o-ring.

kohldad wrote:
It was an old post from 2009 so had to look in the archives to find it.

Lance shower....leak at base of toilet
2021 Freelander 31MB Class C

NRA Life Member

kohldad
Explorer III
Explorer III
It was an old post from 2009 so had to look in the archives to find it.

Lance shower....leak at base of toilet
2015 Ram 3500 4x4 Crew Cab SRW 6.4 Hemi LB 3.73 (12.4 hand calc avg mpg after 92,000 miles with camper)
2004 Lance 815 (prev: 2004 FW 35'; 1994 TT 30'; Tents)

kohldad
Explorer III
Explorer III
I believe if you check the toilet, there is a void on the back side where the water can leak through the floor.

I'll try searching to see if I can find a thread where I read about it.
2015 Ram 3500 4x4 Crew Cab SRW 6.4 Hemi LB 3.73 (12.4 hand calc avg mpg after 92,000 miles with camper)
2004 Lance 815 (prev: 2004 FW 35'; 1994 TT 30'; Tents)

DaButcher
Explorer
Explorer
Almost has to be coming from around bottom of toilet. I put water in with a water hose and it did not get up to the skirting. I was actually just testing the drain and had a look underneath the shower pan and could see dripping where the toilet drain goes through the floor.

WoodGlue wrote:

Is it leaking from the skirting that generally goes all the way around the shower?
WoodGlue
2021 Freelander 31MB Class C

NRA Life Member