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Anonymous users2024-01-24Article 1 of the Code for Design of Building Water Supply and Drainage (GB50015-20030) formulated by the state stipulates that "the balcony drainage system shall be set up separately. The bottom of the balcony rainwater riser should be drained indirectly. ”
In this regard, the explanation of the provisions at the end of the specification is explained as follows: "In order to prevent the roof rainwater from overflowing from the balcony, the balcony drainage pipe system should be set separately. At the same time, in order to prevent the balcony floor drain from smelling, the balcony rainwater drainage system should be indirectly drained with the courtyard drainage pipe. ”
Therefore, the balcony drainage should be set up with its own drainage riser separately, and cannot be directly connected to the rainwater riser on the roof. At the same time, the balcony drainage riser must also take the indirect drainage method, drain to the indoor water or open ditch, and then discharge into the rainwater inspection well, but cannot be directly connected to the rainwater inspection well. In this way, some balconies may have two rainwater risers in the design, and now some places have rarely set up outdoor drainage ditches for some reasons, so in order to achieve the purpose of indirect drainage, it is necessary to make some small open indirect drainage wells.
Even if there is an open drainage ditch outside, there are certain hidden dangers in designing the rainwater drainage system of the balcony in full accordance with the specifications. According to people's living habits, many residents will arrange the washing machine on the balcony because the bathroom is too small, and the drainage of the washing machine is directly discharged into the floor drain of the balcony and discharged into the rainwater riser of the balcony, if the drainage riser of the balcony is directly discharged to the outdoor scattered water or drainage ditch, the phosphorus-containing wastewater with odor, foam and impurities discharged by the washing machine will be directly discharged to the outdoor scattered water and drainage ditch through the rainwater riser of the balcony, causing environmental pollution and seriously affecting people's living environment. Even if laundry wastewater is discharged directly into the stormwater network through a small conversion well, it will affect the water quality of the river body.
It is recommended to set up a waste water riser and a washing machine floor drain on the balcony, and a small amount of rainwater from the balcony is also discharged into the waste water riser, and the waste water riser is connected to the small outdoor open indirect drainage well, and then discharged into the outdoor wastewater pipe network. In this way, the problems mentioned above can be well avoided.
1. Yes.
2. The reason is that according to the regulations, the water supply pipeline of the indoor fire hydrant can be combined with the domestic water (under the condition of meeting certain conditions), then it can be located in the toilet (we mostly see the domestic water supply riser go to the bathroom). >>>More
The translation is as follows.
Balcony wastewater and stormwater system diagram. >>>More
The distance between the center of the DE75 and DE50 pipes and the wall is 100, which is easy to install if it is large.
No, the rainwater pipe of the balcony has the function of drainage and aeration, stretching out of the roof, you can discharge the biogas and waste gas existing in the pipe to the outside, to achieve safety, deodorization, if not, just have the drainage effect, the exhaust gas of the pipeline may accumulate in the pipeline, can not be discharged, it will slowly be discharged from the floor drain position, the smell is very unpleasant!!
There are no strict rules. The diameter of the drainage pipe, whether the three-energy elbow is reduced, and the appearance size of the elbow and tee fittings of different manufacturers are also slightly different, so the specific size depends on the actual situation of your site. >>>More