after the sewer is blocked, we need to find the pipeline company to clean up, so after the work is finished, we need to test the sewer, so do you know how to test whether the sewer is unblocked? here is a detailed introduction:
it is suggested to adopt the above anti clogging measures to prevent the drainage pipe from clogging, but in order to ensure the project quality and serve the users, the indoor drainage pipe must be tested according to the standard before the completion acceptance.
according to the requirements of the specification, the water flow intensity test of indoor drainage pipe should be carried out from top to bottom or in the bathtub, washbasin, sink and other water equipment, and then the water flow test should be carried out to ensure no leakage, or 2 to 3 pieces of toilet paper should be thrown into the toilet to determine whether the paper is quickly sucked into the sewage pipe and smoothly discharged into the outdoor pipe well.
according to the number of layers of the pipeline system, the distribution points of water supply and drainage should be opened one by one, the drainage pipes and risers should be unobstructed, and the interface should be watertight. according to the distribution points of each layer of the pipeline system, one ≤ 3 water distribution point should be opened at the same time, and the drainage pipes and risers should flow smoothly.
according to the total number of water distribution points of each pipeline system, 1 ≤ 3 water distribution points are usually located at high water level, and each outlet and riser shall be discharged smoothly. "for ground drainage, rubber pipes shall be used for drainage, and the drainage outlet shall be discharged smoothly. after the water diversion test of buildings with more than six floors, all the sewage risers and rainwater risers must pass through the ball. the diameter of the ball is about 3 ≤ 4 of the vertical diameter of the drainage pipe. put the ball from the top of the drainage riser to pass through the corresponding pit, otherwise the blockage location should be identified and handled.