DIY guideToilet tank

Replace a toilet fill valve

When the tank hisses or won't stop filling, swap the fill valve: water off, tank empty, old valve out, new one in, level set.

8 steps

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Turn the valve on the wall behind the toilet clockwise until it stops.
Turn it by hand. If it won't close, stop and turn off the main.
Lift the lid off and set it down flat. Flush and hold the handle down, then sponge out the last of the water.
The lid is heavy and breaks if it's dropped.
Put a towel and a bowl under the tank. Unscrew the supply line's nut from the bottom of the tank.
Unscrew the big nut under the tank that holds the valve, then lift the valve out from inside.
Set its height as its box shows, push it down through the hole, and tighten its nut by hand, then a quarter turn more.
Too tight can crack the tank.
Clip the small tube from the new valve onto the overflow tube, so it drips in from above.
Screw the supply line back on and open the valve slowly. Set the float so the water stops at the line inside the tank.
A nut that keeps dripping, a crack in the tank, or a valve on the wall that won't open: turn the water off and ask Handyman for a plumber.

Handyman says: Still leaking? I'll find a plumber.

Free for every home. Handyman asks a few questions, then books a pro it trusts.