How to Install a New Float in a Toilet
A running or leaking toilet can be annoying, but more importantly, it wastes water and can contribute to higher water bills. The solution may be as easy as replacing the float device inside the toilet tank. A float regulates the amount of water that fills the tank after each flush. Over time the float can wear out or become corroded. There are two basic styles of floats: a float ball and a float valve assembly. Don’t let the plumbing intimidate you; this is an inexpensive repair project that any do-it-yourself homeowner can complete in less than an hour.
Replacing the Float Ball
1. Turn off the water to the supply line. A shut-off valve typically is located behind the left side of the toilet. The water line may be coming up through the floor or out from the wall. If there is no shut-off valve at the tank, you must turn off the water at main water line coming into your house. Flush the toilet to empty the tank of water.
2. Remove the old float ball and connecting float rod. Do this by using pliers to unscrew the arm, counterclockwise, from the top of the fill valve.
3. Thread and screw the new float ball onto one end of a new connecting float rod. Screw the other end of the rod into the fill valve.
4. Turn the water on and allow the tank to fill. Check the height of the water with the mark on the inside of the tank. If necessary, adjust the water level by turning the float adjustment screw on top of the fill valve. If there is no adjustment screw, gently bend the float arm.
Replacing the Float Valve Assembly
1. Turn off the water to the supply line. Flush the toilet to drain most of the water out of the tank. Sponge out the remaining water into a bucket.
2. Use an adjustable wrench to loosen the coupling nut at the top of the water supply line located underneath the tank. Once it’s loose, finish unscrewing it by hand and disconnect the line from the tank.
3. Place an old towel on the floor below the tank to soak up any water that may drain from the tank. Remove the lock nut that holds the float valve assembly to the tank using the adjustable wrench. Pull out the old assembly.
4. Measure the height of the overflow tube located in the center of the tank. Set the new float valve assembly to the height of the tube. There are several styles of assemblies, so follow the adjustment instructions for your model.
5. Insert the float valve assembly through the hole at the bottom of the tank. Gently push down on the assembly and thread the provided lock nut onto the shaft underneath the tank. Hand tighten the lock nut, then turn it one-half turn with your wrench. Reconnect the water supply line to the assembly with a coupling nut.
6. Attach the new fill tube to the float valve assembly. Clip the provided angle adapter onto the overflow tube and attach the fill tube to the adapter. If there are any kinks in the fill tube, cut it to fit.
7. Turn the water on and check the water level. Make the necessary adjustments to the float valve assembly according to the instructions for your model. The water level should be 1 inch below the top of the overflow tube.
Things You Will Need
? Adjustable wrench
? Old towel
? Tape measure
? Scissors (optional)
? New float ball or float valve kit