Upstairs flushing toilet, downstairs outside the toilet outside the back of the smell, hard to ask w

If the main pipe of the building is blocked, then in the blocked position, the upper floors will be affected, you can flush upstairs, and the downstairs toilet will be full (the floors below the blocked position will not be affected), if the blocked location is on a separate pipe, then the room on the pipe will be affected. Upstairs flushing, downstairs will shake, can only say that the bend of the pipe is not done well, upstairs flushing will have some inflow.

Because the sewer pipes on the floor are all connected, there will be a smell. But the key problem is still downstairs, and it is necessary to find the source of the anti-taste downstairs. >>>More

This situation generally occurs on the first floor, in order to prevent the odor from turning up, the connection between the sewer pipe and the septic tank will be made into a U-shaped pipe or inserted into the water, if the pipe is relatively thin, it is easy to block, so that the first floor is more likely to be injured. We often have this kind of thing here, so we have to renovate ourselves, thicken the pipe, and straighten it.

If the sewer is not blocked, this will not have an effect, otherwise it will definitely affect the upstairs.

Summary. That's how we do it in our house, we flush the toilet upstairs and our bathroom stinks. At first, there was none, and the longer it passed, the stench came out. Kiss. >>>More