How To Fix A Faulty Toilet Flush Tank

How to fix a faulty float rod in a toilet flush tank.

A faulty toilet flush tank is one of those frustrating facts of life. It eventually happens to everyone one day, often at an inconvenient moment. One of the most common faults is that the tank fills but the water keeps running. It is really annoying but take heart, it can be easily fixed. Here is how.

1. First of all, if you cannot do the repair right away, simply turn off the water supply until you can. You do not have to turn off the total water supply, just the toilet. There is usually a tap or valve nearby or under the toilet flush tank.

2. When you are ready to tackle your toilet problem lift the cover off the flush tank and pull the float rod upwards but do it gently. If the water shuts off then you may have to adjust the float position. Try doing this before attempting to change or replace the rod or anything else.

3. Start by turning off the water supply to the flush tank. Do the remainder of the repairs with the water turned off.

4. Adjust the float position by bending the rod until it is 1/2inch lower. Then turn on the water and flush the tank. The tank should now fill to about 1/2inch below the overflow pipe and your water should stop leaking. If not, then there is another cause for the problem.

5. Only half of the float should be covered by water. If it is under water more than this then it may be leaking and needs to be replaced. To remove, unscrew the float and if it has water in it replace it with a new one. Do not try and repair it. It is not worth the effort.



6. Check the washer in the inlet valve. If the water does not shut off when you pull the float rod up the washer may need replacing. To do this, remove the two pivot screws holding the arm of the float.

7. Slide out the rod and valve linkage. Remove the plunger from the valve by pulling it upward. The washer at the base of the valve shuts off water flow. Replace it with a new washer.

8. Replace everything back and test your system. Hopefully you will be flushed with success.

While doing repairs like this it is a good idea to give the system a general check for cleanliness. Toilet flush tanks usually collect a lot of slime and scum that can inhibit their function as well as create disease.

Give the tank a general clean, including working parts. To ensure easier action, you can smear grease over moving parts.

To ensure cleanliness, there are various cleanser flushes on the market which help keep both toilet flush tank and toilet bowl clean. Most are pleasantly scented and some come with germ-killing ingredients which is useful in any toilet area.

If the unit in your toilet flush tank is very old and totally worn down, you can buy a total already assembled replacement unit. There is no need to replace the flush tank and installation of the new inside unit is easy. However this is only necessary if your existing unit is in a really ghastly state.

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