Why does the toilet smell bad even though it is clean?

The drainage system in the house has a bend, which helps hold water, to prevent odors from coming back. Because it is curved, it is easy to accumulate dirt, causing odors and blockages.

When the room smells bad, you often think of using fragrances such as essential oils, room sprays to cover it up or pouring cleaning products into the toilet. However, when you stop using it, the toilet may smell like before.

Structure of the toilet - septic tank system. Photo: RMC.

Therefore, the first thing you need to do is find out where the odor comes from to completely solve it. In the bathroom, the toilet and the drain are the two places that are most likely to cause odors. You need to check the following factors:

- Lots of residue in the pipes:In toilets, urinals, and sinks, there is a siphon tube that holds water to prevent odors from coming back. Due to its curved design, this part can easily accumulate dirt that causes odors and blockages. To deal with this residue, you can use liquid or tablet cleaning products, pour them into the toilet or sink, soak for the recommended time, and flush.

- Septic tank is full:Most homes today use septic tanks but there is still a lot of sludge accumulated. For households, the time to pump out the septic tank is about 2-3 years. If you have not done this for too long, the toilet is also likely to smell bad. Currently, there are many companies that support the service with a price of about 400,000 - 500,000 VND for pumping and transporting one cubic meter of sludge.

- The septic tank vent is blocked:If installed incorrectly, this pipe can become clogged, causing foul gases to back up. This repair requires a professional.

The siphon pipe is a small but important detail in the design of the toilet area. Photo: RMC.

- The amount of water in the siphon is too low:In normal condition, the water in the siphon pipe and the tank are at the same level, about 10 cm. If installed incorrectly, the water in the lower pipe will cause the foul gas to flow back and spread throughout the room. In this case, you need to hire a technician to reinstall the toilet correctly.

- The floor drain smells:When installing the drain pipe, you did not use a siphon pipe, so the bad smell came out. In addition, it is possible that the worker installed the pipe to the septic tank instead of the separate drain tank.

After fixing design errors and pumping the septic tank, you should regularly clean the toilet properly. Not only clean the interior surface, you also need to use cleaning products for pipes and toilets periodically.

In addition, families should not put grease, non-biodegradable waste, regular paper, dirty trash, cleaning agents not intended for toilet use... into the toilet.

According to VNE