Seek high water supply and drainage Multi storey residential buildings roof and build toilets, sewag

It can be directly discharged into this sewage riser, the general sewage pipe is larger than the special ventilation riser, the general special ventilation riser will not extend out of the sky, the general drainage is divided into the same layer of drainage and lower drainage, the practice you said should not belong to the formal practice.

The ventilation pipe generally does not extend out of the sky, and the drainage pipe only extends out of the sky, and the ventilation cap is set.

Generally speaking, the bottom layer, according to the requirements of the code, is to be drained separately, and the sewage cannot be connected to the riser.

In your case, you can discharge into the main riser, the drainage capacity of the main riser has regulations, and the ventilation pipe is generally not set up when the multi-layer drainage pipe is arranged, and the discharge of your point is quite sufficient.

Step on the bench to smell the big smell is the toilet sewage pipe, the small smell is the toilet exhaust hole, be careful, pay attention to safety, you can also cut it off, you can smell it.

1.To be accessed, you must use the same layer of drain fittings.

2.If you look at the sewage pipe on the top of the lower toilet of the standard floor bathroom, you can judge which one is the sewage pipe and which one is the ventilation riser.

3.Also, you can go to the property management to see the drawings.

I estimate that all the pipes in the bathroom downstairs are covered with porcelain plates, you can't see it, the two pipes on the roof of your building are the sewage pipe and the exhaust pipe of the bath bomb, don't make a mistake, otherwise the bathroom is also abandoned by the flood, you can also be separated, 1 remove the bathroom bath bomb to see the location of the pipe, 2 the bathroom open the water, listen to the sound of water with your ears in the pipe on the roof, and then you can install the pipe, you can access it on the same floor, add a tee on the line, but the bathroom should be heightened, at least the pipe should be covered, It is recommended to make a squat toilet, I can only say so much, I hope it helps you.

Multi-storey buildings are generally extended-top ventilation, without the need for special ventilation pipes, the two pipes are estimated to be one is sewage, the other is wastewater, do the sewage and waste diversion.

The special ventilation pipe generally does not extend out of the roof, so the main sewage riser should extend out of the roof.

And the main riser doesn't have to go straight up and down, it can be turned vertically.