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Quick Fixes for a Leaking Toilet?

leaking toilet Brown's

How Do You Fix A Leaking Toilet?

Since most of your plumbing system is hidden inside the floors and walls of your home, it may seem to be an intimidating maze of pipes. True, some of it is complex, but some things can be a simple fix. Take some time to gain a basic understanding of how your plumbing system works. Bookmark this page, so the next time you’re dealing with a leaking toilet, you’ll know exactly what to do.

Common Reasons for a Leaking Toilet

Did you know that a leaking toilet can waste as much as 3 gallons of water…per minute. This is not only bad for the environment, but also bad for your budget, wasting up to $200 every month.

Thankfully, toilet leaks tend to be relatively simple plumbing repairs (though not always). Here are the two most common reasons you might experience a leaking toilet and what you can do to fix it before calling in the pros.

Toilet leaks commonly occur because of two reasons: a defected or deteriorating flapper ball (flush valve) or a broken ballcock valve (fill valve).

Defected or Deteriorating Flapper Ball

The flush valve is located at the bottom of the toilet tank. If it’s not sealed properly, forming a watertight seal, water will start to leak around it. Test it out by taking the following steps:


  • Remove the tank lid
  • Flush the toilet
  • Wait for the tank ball to drop and the tank to refill with water
  • Add a colored dye tablet after the toilet stops filling (5 or 6 drop of food coloring work
  • well too)
  • Wait 15-20 minutes
  • Inspect for color in the toilet bowl


If you see any trace of color, you know you have a leak around the flapper ball which will need to be replaced.

Broken Ballcock Valve

If the shut-off valve does not close completely and the float is set too high, water will continue to fill the tank. This overflow is evident by simple observation of the overflow tube.

If you notice this type of toilet leak, first reset the tank’s water to a lower level via the water level adjustment clip. If you have a float cup, squeeze both sides of the metal clip together and move the clip down the rod. If you have a float ball valve, bend the float arm slightly down to lower the water level.

Need Help With a Leaking Toilet?

If all of this still sounds intimidating to you – or the toilet is still leaking even after trying these fixes — we’re here to help! Whether you’re a Monmouth County resident or business owner, Brown’s professional plumbers will make the repair for you as painless as possible. Give us a call at 732-741-0694 or contact us online for all your plumbing repair needs!