Clear the lime from the toilet
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Photo A: Rinse holes
Clean the rinse holes.
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Photo B: Plug holes
Seal the rinse holes.
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Photo C: Dissolve deposits
Remove lime deposits.
If your toilet worked well in the past and
you live in an area with hard water,
chances are the rinse holes around the
bottom of the rim have become clogged
with lime deposits. Clear rinse and siphon
holes are crucial for complete flushing
action. Even though the water from the
tank will eventually find its way into the
bowl, high water volume on the first surge
is important for good flushing. There has
to be a “critical mass” of water for solids
to be flushed.
As a first step, ream out the rinse holes with a bent coat hanger
(Photo A). To do a thorough job, dry the bottom of the rim, then roll
up paper towel “ropes” and seal them against the bottom of the rinse
holes with plumber's putty pushed against the bottom of the rim
(Photo B). Then seal the siphon jet hole with another glob of putty
and pour a bottle of lime remover into the overflow pipe (Photo C).
Let it sit for at least eight hours to allow the lime remover to dissolve
deposits. Remove everything and flush the toilet several times.