Your toilet appears to function properly overall, but when you flush it, you notice water leaking, often around the base or from the tank. This type of leak points to an underlying plumbing issue.
In this blog, we will cover reasons why your toilet leaks when you flush it and how plumbers can help you with toilet repairs.
Reasons Why Your Toilet Leaks When You Flush It
Possible reasons why your toilet might leak when flushed include a faulty wax ring, loose mounting bolts, a worn-out flapper, and more. Let’s discuss each point in detail below:
- Worn-Out Wax Ring
The wax ring sits between the bottom of the toilet and the floor drain. It prevents water and sewer smells from escaping. Over time, these wax rings can dry out, crack, or lose shape. When this happens, water can leak from the toilet when you flush it. - Loose Toilet Bolts or Flange
The bolts hold your toilet to the floor and help keep the wax ring sealed. If these bolts are loose, the toilet can wobble and break the seal, causing a leak near the base. Your local plumber can tighten the bolts to resolve this issue. This prevents over-tightening, as this could cause the toilet to crack. - Cracked Toilet Bowl or Tank
Even small cracks in the toilet bowl or tank can let water out when you flush. These cracks can come from age, impact, or defects. If you see water around the toilet, even when it hasn’t been used, a crack could be the reason. - Leaky Tank-to-Bowl Gasket or Bolts
The tank is connected to the bowl with bolts and a rubber gasket. If these parts wear out or come loose, water may leak from under the tank when you flush. Replacing or tightening them often solves the issue. - Worn Washers
Washers help seal off parts where water flows inside the tank. Over time, they can wear out and cause small leaks when the toilet is flushed. - Bad Fill Valve or Worn-Out Flapper
If the fill valve doesn’t shut off, water continues to flow into the tank and may overflow. A flapper that doesn’t seal properly can also let water leak into the bowl and sometimes spill onto the floor. - Clogged Drain Line
If the pipe under your toilet is blocked, flushing may cause water backup, break the wax ring seal, and cause a leak at the base. Hence, signs of slow drainage or backups should be promptly addressed. - Condensation
Sometimes, the water on the floor isn’t from a leak. It’s just moisture collected on a cold toilet. This may appear as a leak near the base or tank.
How Can Professionals Help You?
There could be several reasons why your toilet leaks when flushed. Professionals can accurately diagnose the root cause and provide cost-effective and reliable solutions on the first attempt. They can provide valuable insights on whether a replacement is needed or a repair will suffice in your case.
Professional plumbers can also reduce the risk of further damage to your toilet and home!
Final Say
A leaking toilet, only when you flush, can be frustrating. It can be due to various reasons, like a faulty wax ring, loose mounting bolts, a worn-out flapper, and more. However, professional plumbers can restore your toilet’s function in no time.
If you suspect a similar issue, get expert help from Santana Bros Plumbing. Call us at (713) 494-5504.