A common reason for a falling water level in a toilet bowl is a clogged vent. The water passing through the pipes creates a vacuum that pulls water into the drain from the bowl. Other reasons for dropping water levels include improperly installed drains and hairline cracks in the porcelain.Continue Reading
Drain systems move wastewater with gravity. Vents extend from the drainpipes through the walls and ceiling of the home to allow air to help gravity push the water through the pipes. Animal nests or other debris sometimes clog the vents, decreasing or stopping the flow of air. Pushing a plumber's snake through the vent usually removes the obstruction and stops the toilet bowl from losing water.
In order to operate correctly, the drain should slope gently away from the fixture. Due to improper installation or settling of the home, some pipes slope toward the fixture. This results in water collecting in the pipe under the fixture, which also pulls water out of the bowl. Fixing this problem requires adjusting the line so it slopes correctly.
Porcelain sometimes develops hairline cracks. While some of these cracks allow the water to leak from the fixture onto the floor, others affect the toilet by allowing water to leak directly into the drain. If the vent is clear and the line slopes correctly, a porcelain crack is the likely cause of losing water in a toilet bowl. Repairing this problem requires replacement of the toilet.Learn more about Plumbing
To install toilet shims, use a carpenter's level to ensure that the toilet bowl is level, then push the shims in place to keep the toilet from rocking, preventing water and sewer gas from leaking underneath. Use a utility knife to cut away any excess parts of the shims, then caulk to seal them in place. Plastic shims are preferred, but if you can't find toilet shims specifically of that material, you can use any plastic construction shims.Full Answer >
The two most common problems that occur in RV toilets arise due to problems in the seals at the bottom of the toilet bowl and the seals of the water valves. In order to repair these problems, turn the water off, flush the toilet to clear any remaining water and water pressure and remove the toilet to make the repairs.Full Answer >
There are several quick alternatives to unclogging a toilet bowl drain without using a plunger, which include using a wire clothes hanger, pouring hot water solutions into the bowl and using a vacuum cleaner. A cheap plumbing snake can also be used to clear out the clog and it can sometimes do a better job than a plunger. More stubborn clogs may require the whole toilet bowl to be pulled out to clear it.Full Answer >
When the toilet is flushed, water from the tank rapidly drops into the toilet bowl, which forces the waste water down the drain. As the drop in the tank's water level is sensed by the float, the tank refills with water until the float shuts off the supply.Full Answer >