How to repair a running toilet

 

When a toilet never seems to stop working, it can quickly increase your water bill and get on your nerves. However, this problem can be solved easily for the DIY enthusiast. All you need are some spare parts and the right advice. Start with the simplest solutions and, if they don't work, move on to more serious repairs.

Adjust the rod or chain

Check the guide rod or the chain of the tank flap. If the rod is bent or the chain links are twisted, simply straighten them to allow the flapper to fully engage. If this operation prevents the water from flowing, it is not necessary to continue.

Adjusting or replacing the float

Check the float mechanism. Try raising the ball; if this prevents the water from flowing, bend the float arm downwards with pliers until it is properly buoyant. If the ball contains water, it must be replaced. To do this, simply unscrew the existing float from the arm and replace it with a new one.

Shut off water

Locate the toilet shut-off valve behind the bowl and turn the handle to shut off the water. Then flush the toilet to completely empty the tank, as water can make it more difficult to inspect, clean and replace certain parts. Always be sure to repeat this procedure before carrying out a repair if you have turned the water back on for a test.

Cleaning or replacing the flapper

The valve seat and flapper may be damaged or have corrosion or build-up that prevents it from closing. Lift it up and check for debris. Gently clean the seat and edge with an abrasive sponge to remove any debris. If the damage is extensive, replace the flap.

Take the old flapper with you to the shop to make sure you get a new one that is compatible with your toilet. Attach the new valve to the catches that hold it in place and make sure it fits properly. Open the flapper again and fill the tank to see if water is flowing.

Replacing the drain valve

If the problem has not yet been solved, it may be necessary to replace the flush valve assembly. To do this, the tank must be completely removed from the tank, so use an adjustable spanner for the nuts attached to the tank bolts and try turning them. If they prove stubborn, spray them with a lubricant and apply some force until they come free. Remove the bolts from their holes and set them aside.

After removing the tank, turn it over on the towel and remove the large plastic nut in the centre. Take a couple of quick photos at this time if you think you are having trouble remembering this configuration; this way you can refer to the photos during reassembly. Remove the exhaust valve from the tank, take it to the hardware store and purchase a new one. If the assembly shaft is cracked, the entire shaft and assembly will need to be replaced. Install both parts in the same manner as the old ones, then put the tank back on the tank, properly securing the tank bolts and washers.

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