toilet float

Toilet Floats Made Easy


If you read our earlier post, “How To Fix A Leaking Toilet,” you may have come to the conclusion that a faulty float is to blame for that annoying sound and those high water bills.

A float has a simple job – regulate the water levels in the tank after each flush. But over time, the float sustains normal wear and tear that prevents it from completing this very important task.

Fortunately, this is an easy repair that most DIYers will be comfortable doing. But, if you aren’t quite sure what you’re doing, read this post for detailed instructions on how to replace the culprit.


You’ll need a few different tools, including a pair of pliers, an adjustable wrench and a tape measure. You’ll also want to have a bucket and sponge ready as well as an old towel, to keep things clean and tidy. And don’t forget the new float ball or float valve kit!

The first thing you’ll want to do is determine if you have a float ball, or a float valve assembly. A float ball is simply a rubber ball, while a float valve assembly is, well, an assembly. It also tends to be flatter. Regardless of the type of float your toilet uses, you’ll want to make sure that you drain the tank completely before attempting to replace the float. This is done by simply turning off the water at the main shut off valve, and flushing the toilet until the tank is completely empty. You can now use your sponge to dry out any excess water.

Float Ball

1. Now you’ll want to remove the faulty float ball and the flat rod that is connected to it. Use your pliers to unscrew the arm, then thread the new ball onto the new connecting rod, and screw the opposite end of the rod into the fill valve.

2. You can then turn the water back on and wait for the tank to fill. Make sure the water level is equal to the mark on the inside of the tank, and either tighten or loosen the adjustment screw on the fill valve to make sure it is at the correct level. Easy peasy!

Float Valve Assembly

1. Once the water is turned off, you can use your adjustable wrench to remove the nut at the top of the water supply line (and at the bottom of the tank). This will allow you to disconnect the line from the tank. Use your old towel to clean up any water that may leak out of the bottom of the tank.

2. Now remove the nut that holds the float valve assembly in place, and pull the assembly out of the tank. You’ll want to measure the height of the overflow tube so you can set the new float valve assembly to the same height. There should be instructions included in your model of the assembly that will detail how you can adjust the height.

3. Once the height is set, you can insert the new assembly into the tank, gently pushing down so you can thread the lock on to the shaft protruding from the tank. Use your wrench to make one half turn of the nut, ensuring that you don’t tighten it too much.

4. Reconnect the water supply line, attach the new fill tube, and clip the angle adapter onto the overflow tube.

5. You can now turn the water back on, and inspect the level in the tank. Either tighten or loosen the adjustment screw on the float valve assembly to ensure that the water level is 1 inch below the top of the overflow tube.

And that’s it! This is an easy and inexpensive repair that will save you a noticeable amount on your water bills, so don’t be afraid to try it. And if you have any questions, don’t hesitate to get in contact.

Happy DIYing!