Tank Stopper
Definition and meaning of Tank Stopper in real estate.
A tank stopper, commonly known as a toilet flapper, is a rubber or plastic valve that seals the opening between a toilet tank and the toilet bowl. It lifts when the toilet is flushed to allow water to enter the bowl and seals back down to stop the flow once the tank empties.
In more detail
The tank stopper is a critical component of a residential plumbing system because it prevents water from continuously leaking from the tank into the bowl. Over time, chemical cleaners, mineral buildup, and water exposure cause the rubber of the stopper to degrade, warp, or harden.
A failing tank stopper is the most common cause of a running toilet, which can waste significant amounts of water and increase municipal water bills. Replacing a worn stopper is a simple, inexpensive do-it-yourself repair that homeowners can perform without calling a professional plumber. Home buyers should check the toilets during a walk-through to ensure they are not running.
Key facts
| Category | Property Types & Construction |
|---|---|
| Also known as | Toilet flapper or flush valve seal |
| Common problem | Running toilet water waste |
| Difficulty | Easy, low-cost homeowner repair |
A homeowner notices a constant running sound from the bathroom toilet and replaces the warped rubber tank stopper to stop the water waste.
Frequently asked questions
How do I know if my toilet tank stopper needs to be replaced?
If you hear water running constantly, or if you place food coloring in the tank and it leaks into the bowl without flushing, the stopper is likely failing.
What causes a tank stopper to wear out quickly?
In-tank chlorine cleaning tablets are highly corrosive and will degrade the rubber of a tank stopper much faster than normal water exposure.