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It is necessary to analyze what causes it before formulating corresponding measures to deal with it. 1.If there are hard objects or hair in the pipe (especially the trap), it must be completely removed, and the access port of the trap must be opened to clean it; 2.
If the slope of the pipeline drainage is not enough (or the reverse slope), the slope must be adjusted; 3.If the diameter of the pipe is less than 110mm, the pipe must be replaced; 4.If none of the above is the case, the treatment with a powder pipe dredging agent will not corrode the pipe.
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20 30 years is certainly no problem.
Toilet sink refers to the discharge of toilet sewage or floating debris. In the past, the non-standard practice was to pour decoration garbage directly into it, and pave the floor tiles with cement and sand. Later, considering the load-bearing and water accumulation problems, lightweight ceramsite backfill was used, and the gap between the ceramsite grains was convenient for water to seep into the ground and drain out (overhead meaning). >>>More
It is necessary to see how to use and place what things are placed after the overhead. If the weight is high, consider using a metal skeleton; If the weight is not large, you can use a wooden keel as a bracket.
Toilet sink overhead is an improved practice to overcome the drawbacks of backfilling, used for large bathrooms and kitchens that need to be cleaned and maintained frequently, and it is still subject to technological progress and cost reduction in the family. >>>More
Disadvantages of backfill method: 1. The natural settlement of the material causes cracks in the surface waterproofing, and the water leakage soaks the backfill material, which increases the load, resulting in greater settlement, and even cracking of the pipeline, and finally the waterproofing of the lower layer fails early and leaks; 2. The leakage can only be found after the leakage has occurred and then make up for it. >>>More
Bathrooms are elevated.
Of course rats. >>>More