The bathroom is a vital area of the home. A leaky toilet can set you back hundreds of dollars on your water bill. Water leaks account for approximately 12% of all water use in the average American home.  These leaks can be found in the sink or the bathtub. However toilet leaks are easy to go unnoticed.Most leaks can be traced to a faulty flush valve or fill valve problems. Finding leaks in your toilet is a simple process . Here is how you find toilet leaks.

The signs

There are a few telltale signs of Toilet Fill Valve leaks. You hear the sound of running water or a faint hissing. Often water can flow silently making leaks hidden. Other signs are looking at the water level. If the water level is well above the overflow pipe, check the float.  Problems with the connection between the flush lever and rubber flapper can cause leaks.

The dye test

  1. Remove the toilet tank lid.
  2. Drop one dye tablet preferably red or blue or 10 drops of food coloring into the tank.
  3. Put the lid back on. Do not flush.
  4. Wait at least 10-15 minutes, and then look in the bowl. If you see colored water, you have a leak.
  5. If not, then there is no leak.

The flapper test

If the water level of the tank is not surpassing the overflow tube, but you still hear or see excess water flowing into the bowl. The flapper is a round rubber seal that sits at the bottom of the tank. It has a crucial role of stopping the water inside the tank from entering the toilet bowl.Stop the flow of water supply valve near the toilet, and check if the water level in the tank decreases. If the water level decreases after 15-20 minutes, the problem could be due to the flapper. This may be from the flapper or the chain.

A leaking flapper can waste thousands of gallons a month. This can result in $2000 on top of your water bill. Flapper valves cost from $5.00 to $10.00.It takes less than five minutes to change the flapper valve. Installing a new toilet flapper is very easy. If you need help you can find a plumber for a new toilet. Maintenance of plumbing systems requires the flapper valve to replaced once every 5 years. This is a preventative measure against hard water buildup in the toilet.


Finding water leaks is important in maintaining a household. Fill valve leaks are hard to notice. A water leak sensor can find them easily. The device flashes a green LED light when the toilet is properly functioning. Once toilet leaking has been sensed,The LED light will change to red.

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