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My Mansfield No. 35 toilet - it flushes fine and then the bowl slowly empties over the day until the bowl is empty. There is no leaking of water and the water is full in the tank. Help??

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You are describing a couple of possible problems, neither of which have super easy solutions.
The worst case senario is that there is a crack in the passageway the water travels when it is flushed and just happens to be at a spot that allows the leaky water to go into the floor drain and not on the floor. This is most likely to happen in a brand new toilet situation in which case you take the bowl back to where it was purchased and exchange it.

The most likely scenario however is that there is some form of material caught in the passageway and is "wicking" the water out of the bowl. As water in the bowl disappears from view when you flush, it travels uphill for a moment....over a hump..and then down to continue its journey to the sewer drain. When a piece of material is caught laying over that hump with one end in the bowl water and the other end hanging in empty space, it will draw the water out of the bowl "wick" just like a wick in an oil lamp sucks the oil up through it so the flame continues to burn the oil and not the wick.
Often times just using a plunger vigorously, after a flush and the bowl has refilled, for a couple of minutes will help get the pesky piece over the hump. Otherwise only a special toilet snake (most often called a closet auger) will solve this issue. If you need to get this auger, Do NOT think if it costs more then it must be better. They can range up to $35 or more. You should be able to get this tool, that hopefully you will never have to use again, for between $10 to $15

Posted on Aug 09, 2010


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I thought it was a clog in the drain pipe.
But the problem was clogged holes where water flushes into toilet bowl.

Here's how I fixed problem.
Gallon of CLR calcium-lime-rust remover from Home depot.
Pumice stone from hardware store.

Home supplies:
Cut off bottom of empty clorox bottle to make container for CLR
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Flush toilet to clear holes so far.
Turn off water to toilet.
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Keep flapper open.
Use cup and pour dose of CLR directly into flapper opening.
(You can also pour CLR down overflow tube... but flapper opening puts whole dose directly onto problem)
Pour another cup of CLR into opening.
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