Replace Your Toilet’s Flapper Valve | Super Blog

Replace Your Toilet’s Flapper Valve

Time: 20 minutes

Have you checked your toilet tank and found that it’s leaking water and running longer than normal? Then it’s probably time to replace your toilet tank’s flapper valve. It’s quick, easy, and will save you from potentially expensive water bills.

What's in it for you?

  • Conserve water
  • Save money on your water bill
  • Improve toilet function

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  1. Inspect for replacement. Since the flapper valve controls water flow, your toilet model will tell you what kind of flapper valve you need to purchase. Check your toilet’s “gpf” (or “gallons per flush”) on the back rim of the toilet bowl to determine type.

  2. Out with the old. Turn your toilet’s shutoff valve clockwise to turn off the water. Don some rubber gloves, remove the lid of your toilet tank and hold down the flush handle to drain the water. Once it’s mostly drained, unhook your old flapper valve and its chain from both pegs near the bottom of the tank and the flush lever.

  3. Wash away buildup. Once your old flapper valve is disconnected and removed, clean away any bacteria or mold that could damage the new one. Get a soft sponge and a little bit of dish soap, and scrub the opening that the flapper sits in until it’s smooth and free of buildup.

  4. In with the new. Hook the new flapper valve into the two attachment pegs at the bottom of the tank. Lower the flapper to make sure it’s adjusted correctly for a tight seal. Then re-attach the chain to the flush lever, leaving about a half-inch of slack in the chain.

Pro Tip: Cut your extra length of chain and avoid leaving it floating in the tank. It could get pulled under the flapper when you flush the toilet.

  1. Test it out. Turn your water back on and wait for the tank to refill before pressing the flush handle. The toilet should flush and refill normally with no lingering leaks. Replace the tank’s lid once you’re done.
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