What Is the Cause of Toilet Leakage? How to Fix It?

Understanding Toilet Leakage

If you're experiencing leakage around your toilet, particularly at the water outlet to the downstairs, it’s important to understand the structure of the toilet. The water inlet is typically an external factor, and leaks in this area are generally easier to fix without removing the toilet. Most leaks, however, originate from the water outlet.

Here are the three main reasons for toilet leakage:

① Reason 1: Misalignment of the Toilet Drain

If the toilet drain is not aligned with the drainpipe, or if there is a mismatch in diameter, water can leak out. To resolve this issue, locate a sewer pipe that matches the diameter of the toilet sewer pipe. Ensure that the toilet sewer pipe is properly aligned with the sewer pipe, and then seal the connection.

② Reason 2: Damaged Toilet Tube

A broken toilet tube can lead to persistent leaks. If you notice that the toilet tube has been compromised for an extended period, it will likely need to be replaced.

③ Reason 3: Inadequate Sealing

Leaks may also occur if the toilet has not undergone proper sealing treatment, or if the sealing does not meet standard requirements. Issues with the installation of the flange ring can also contribute to leakage. If sealing is the problem, you will need to reapply the sealing treatment.

How to Perform Waterproof and Odor-proof Sealing Around the Toilet？

Many people may be unfamiliar with the flange ring, which is the seal connecting the toilet outlet pipe to the floor drain. This component plays a crucial role in providing waterproofing and odor-proofing. Here’s how to properly seal your toilet in four steps:

① Locate the Toilet Downspout: Start by finding the toilet downspout and ensuring it is dry.

② Clean the Downspout: Thoroughly clean the toilet downspout to remove any debris or residue.

③ Install the Flange Ring: Place the flange ring (seal) onto the downspout.

④ Apply Sealant: Use glass glue or another waterproof product to complete the sealing process.

Conclusion

The primary causes of leakage around the toilet include misalignment of the toilet downspout, prolonged use leading to cracks or quality issues, and improper installation of the toilet seal. If you prefer not to tackle these repairs yourself, it's advisable to consult a professional plumber for on-site assistance. Attempting to fix these issues without proper expertise can easily result in damage to the toilet, leading to costly repairs.