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Is Your Toilet Leaking Water? Here Are the Possible Causes

05/03/2025 | Hawkrown

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Toilet leaks can be quite troublesome, especially when water seeps around the base. Here are some possible reasons for water seeping around the toilet.

Causes of Water Seeping Around the Toilet

There are several reasons for water leaks. One common cause is the miniaturization of components, which can lead to inadequate buoyancy of the float ball. When the float ball becomes submerged, the fill valve cannot close, causing water to flow continuously into the toilet, resulting in leakage. Additionally, poor-quality toilets may have cracks in the inlet or outlet pipes, compromising the sealing effect. This allows water to flow out after passing through the flush valve, leading to leakage around the toilet.

What to Do if the Toilet Base is Leaking

1、Improper installation of the wax seal or flange between the toilet outlet and the sewer line can cause leaks around the floor. In such cases, it’s necessary to disassemble the toilet, purchase a new flange, and reinstall it. Seal the toilet to the floor using silicone sealant. Note that silicone is only used to secure the toilet's position on the floor; it is not meant to seal the drain.

2、Basement leaks can be simple to fix, but some people try to use silicone for repairs, which often leads to mold and mildew due to poor sealing. Instead, consider using specialized waterproof products like epoxy putty that are designed for sealing toilet bases and fixing leaks in pipes behind the toilet.

3、Another option is to disassemble and replace the sealing ring carefully to ensure a proper seal. You can find toilet sealing rings at plumbing, hardware, and sanitary ware stores, typically for around 5 RMB each. Regular acidic silicone can serve as a sealant, but using neutral, mold-resistant silicone is advisable. Although this can be done easily, it's often best to hire a plumber, as there are details that require attention.

In summary:this is a brief overview of the causes of water seepage around the toilet. If you have any questions or want to read more on this topic, feel free to visit the Hawkrown.

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