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How To Replace A Toilet Flapper
An old toilet flapper can be the cause for a running toilet. Since this part is made of rubber it can get hard and break down over time. Once the plastic is worn out it will not form a tight enough seal to stop the flow of water as it should.
Luckily the flapper is an inexpensive part that can be easily replaced. If you have narrowed down the problem of your running toilet to a bad toilet flapper this quick fix can solve the problem.