how to tell if flange leaks?

katdipFebruary 11, 2008

I had a new tile floor and toilet installed in my bathroom about 6 months ago. A couple of months later, I noticed that some of the grout near the toilet is darker than the lines around them, and I was wondering if maybe the toilet is leaking at the flange, below the tile but above the waterproofing on the subfloor. It is a small hex tile, so there are lots of grout lines, and there are maybe 6 or 7 darker lines between 4 or 5 tiles. They are near one part of the toilet, but don't run under the toilet, and don't seem to be spreading over the past couple of months since I noticed them.

I didn't put caulk at the back of the toilet and don't see anything leaking there. I've looked at the floor underneath (I have access from the basement) and don't see any water, but the tile guy put a water barrier under the mortar base, so it may not be leaking down through that. The toilet doesn't run, so it doesn't seem like the bowl is draining, even slowly.

Is there any way to see if the toilet is leaking without taking the whole thing off and putting in a new wax ring? If I do take the toilet off, how will I know if it has been leaking? If it's not coming through to the subfloor, should I just leave it?

Thank you for reporting this comment. Undo

Sounds like you need to pull the toilet and install a new wax ring (probably a thicker one). That dampness is a good indicator of the problem.

    Bookmark   February 11, 2008 at 2:47PM
Thank you for reporting this comment. Undo

Sweating maybe? I would take a shower, flush the toilet three times and with a piece of toilet paper wipe the outside of the toilet top to bottem and front to back to see how much, if any, moisture is present. If none, then see homebound's post.

    Bookmark   February 12, 2008 at 10:05AM
Thank you for reporting this comment. Undo

I have an idea !
Buy or borrow a moisture meter, they use them when doing hardwood floors, you could place it right on the discolored grout to determine if it's water that is causing the discoloration then go from there.

    Bookmark   February 12, 2008 at 4:33PM
Sign Up to comment
More Discussions
softener is not using up salt
I have hard well water (35 gpg, 0.5ppm iron, pH 7.0,...
Improving water pressure to outside spigot
I would like to improve the pressure and flow rate...
Water Softener - calling justalurker
Hopefully you are still around. I had reached out a...
fleck fusion high flow metered water softener
Our Culligan has died and we aint too heartbroken about...
what brand water softener
have 2400 sq ft rancher on town water. do not have...
Sponsored Products
Neon Circle Framed Wall Art - 20W x 20H in. - 41-322
$38.44 | Hayneedle
Black Arch Platform Bed
Christy of England Maddox Duvet Cover - 120005570526016390
$239.00 | Hayneedle
DUROCK Shower Hardware 16 in. x 16 in. x 4 in. Shower Niche 170136
$59.97 | Home Depot
Glistening Ridge Rug 9' x 12' - SOFT BEIGE
$3,299.00 | Horchow
Aston Shower Enclosures 48 in. x 77.5 in. Frameless Sliding Shower Door
Home Depot
Kersey Oushak Rug 10' x 14' - IVORY/BROWN
$7,399.00 | Horchow
Modern Block Rug 5' x 8' - SLVRGRY ON LTGRY
$699.00 | Horchow
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™