Handling slow-flushing toilets

My house has just installed two horizontal drain (wall mounted) toilets but both drain very slowly, drop the paper in but can’t float. Where is the error, please advise?

Reader: Tu Linh

Horizontal or horizontal flushing toilets apply vortex flushing technology, the water flow will flow from the wall of the tank, swirling 360 degrees deep, so it will wash away all waste quickly and save water.

In addition, the horizontal drain toilet does not cause floor damage or water seepage to the floor, and has a beautiful space-saving design. Due to its superior features compared to straight drain toilets, the cost of horizontal drain toilets is higher, picky users.

Horizontal flush toilets are often used for bathrooms and toilets on the ground floor or upper floors if you want to avoid beams when placing horizontal sewage pipes. Illustration: prom.ua

Questions from readers about the phenomenon of slow draining toilets, architect Truong Thanh Trung (T&T Architectural and Interior Design Consulting Company) said that if this phenomenon has lasted for a long time, it may be caused by full septic tank, foreign body or long-term use of undigested toilet paper. However, if it appears as soon as it is put into use, there are a few possibilities:

The first is because the toilet drainage system does not have a vent pipe. This pipe is connected separately from the drain pipe of the toilet raised up. In the septic tank, when the waste is fermented, it will produce gases such as methane (CH4), SO4… which are gases that, when compressed, will generate high pressure, which is easy to explode, or encounter electric sparks. similar phenomenon occurs. Therefore, each septic tank needs a vent pipe to reduce the amount of methane and sulfur generated in the toilet. In addition, the vent pipe also has the effect of increasing the pressure of the water flowing during use, making the discharge more powerful.

The second is that even if there is a vent pipe, it is also necessary to check that this pipe is not blocked. Usually, the vent pipe will be located at the highest position compared to the ceiling of the rooftop to avoid the phenomenon of polluted smell.

The third cause is that the horizontal drain line from the wall to the septic tank system is too long, has no slope, or has little slope.

Fourth, because the installer is not technically correct, the siphon hole is eccentric. Because it is not a common device, not all workers can master and grasp the correct installation technique of this type of toilet. That’s why you need to seek professional help.

Finally, you need to check the toilet tank to check for the following items:

– Is the length of the exhaust valve chain reasonable? Normally when pressing the drain, the chain will pull up the mouth of the exhaust pipe so that the water can flow completely through the mouth of the pipe. In case the chain is too long, when pressed, the exhaust mouth will not be fully lifted, causing the water to flow less and weakly.

– Is the buoy system up to the standard? Because it is possible that when installing, the workers have not adjusted the float, causing the float to be low, making the water level in the tank low. This is the cause of the weak, slow discharge, not enough pressure to create a vortex to push the waste out.

In addition, it is necessary to check the short length of the discharge press rod as well as the lever to see if it is loose due to thread slip or not.

Trang Vy


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