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Step 6 · Turn Water On and Test

Slowly turn the water supply valve handle counter-clockwise to turn the water back on. Allow the tank to fill completely. Listen for the sound of running water after the fill valve shuts off; it should be silent. If it is, perform a test flush. Watch to ensure the flush is powerful and complete, and that the flapper drops down and creates a proper seal after the water has emptied from the tank. Wait a few minutes to ensure the water in the tank remains at a constant level.

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Step 6 · Turn Water On and Test

Slowly turn the water supply valve handle counter-clockwise to turn the water back on. Allow the tank to fill completely. Listen for the sound of running water after the fill valve shuts off; it should be silent. If it is, perform a test flush. Watch to ensure the flush is powerful and complete, and that the flapper drops down and creates a proper seal after the water has emptied from the tank. Wait a few minutes to ensure the water in the tank remains at a constant level.

Tools and Materials

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How to Replace a Toilet Flapper to Fix a Running or Weak Flushing Toilet

Step 6 of 6·5 min left

Shut Off Water Supply & Drain Tank
5 mins3 itemsBeginner
Remove Old Flapper
2 mins2 itemsBeginner
Clean the Flush Valve Seat
3 mins2 itemsBeginner
Install New Flapper
2 mins2 itemsBeginner
Connect and Adjust the Chain
4 mins2 itemsIntermediate
6
Turn Water On and Test
5 mins1 itemsBeginner
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