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There's nothing more annoying than a free-flowing toilet. You know it’s probably something quite small that needs fixing. Calling out a plumber is going to set you back $90 before they’ve even done anything. But if you don’t get a plumber in, you’ll be wasting gallons of water every day. You need to do something quickly before your water bill starts sky-rocketing. Luckily, fixing a running toilet is a lot easier than you may think. Even if you have no plumbing experience, this is one fix you can definitely do yourself.

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1. How Your Toilet Works

Before starting any repairs, you need a basic understanding of the parts in your toilet tank and how they work together.

  • When you press the flush handle or button, a chain lifts a flap, known as a flapper, which allows water to flow from the tank into the toilet bowl.
  • A plastic float sits on top of the water and drops down as the tank empties. This float is connected to a fill valve that opens when the float is down and closes when it’s up.
  • In the center of the tank is an overflow tube which drains excess water into the toilet bowl if the level in the tank gets too high.

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