DIY Fixes for a Running Toilet - Home Tips from A.J. Perri NJ Plumbing Skip to content

My toilet is always running. Is there anything I can do myself to fix this?

It is most likely the flapper in the bottom of the tank, which you can simply replace. Sometimes the chain can be too long and get caught under the flapper. The chain should be long enough to reach from the lever arm to the top of the flapper without pulling on it.