A master plumber shares his secrets for setting toilets on tile floors. The key is getting a good caulk seal between the toilet and the floor, which prevents rocking and protects against leaks.
By the DIY experts of The Family Handyman Magazine:July/August 2012
Cut the caulk tube tip square and drag the caulk gun toward you as you lay in a
thick bead of caulk along the inside edge of the tape.
Toilets should be caulked to the floor to
prevent side-to-side movement that can
break the wax seal (and to prevent
splashes or overflows from puddling under
the toilet and rotting the floor). DIYers often
set the toilet and then apply a tiny bead of
caulk along the outside edge. That doesn't
always provide a good enough bond to the
floor, and it leaves a prominent caulk line.
There's an easier way to secure the toilet
and provide a cleaner caulk line. Just follow
this tip from master plumber Les Zell.
First set the toilet in place (without the
wax ring) and square it up to the wall. Then
make an outline of the toilet on the floor
with masking tape. Remove the toilet and
turn it on its side. Measure the depth and
width of the gluing edge of the bowl. Next,
move your caulk gun to the inset depth you
just measured and apply caulk directly to
the floor, maintaining the inset depth as
you follow the tape. Install the
wax ring and lower the toilet onto the
flange. Stand on the toilet to compress the
wax ring and ensure good contact with the
caulk. Then use paper towels to clean up
any caulk that oozed out.
Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.
Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.
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