How to calculate the size of the bathroom branch pipe when it meets 45

Bathroom drain pipe size: as long as it is not a toilet, DN50 is used, and DN100 is used for the toilet and the pipe after the toilet. There are also many precautions in the selection of the diameter of the toilet sewer pipe. >>>More

No, 1, because all the branch pipes have a certain slope, otherwise they can't be drained. 2. The connection between the branch pipe and the riser is an elbow, which basically blocks the backflow of water, 3, the branch pipe also has a water trap at the connection to the sanitary equipment, 4, the diameter of the riser is much larger than the diameter of the branch pipe, so there is generally no such worry. Of course, if there is a blockage in the riser, there will be what you call backfilling. >>>More

If it does not appear on the ground, wall, etc., and can be seen, it is necessary to do the acceptance data of the concealed project; The caisson drainage of the bathroom is visible before the acceptance of the project and the delivery and decoration of the owner, and the concealed engineering information can not be done. It's not that you don't want to do the data, you do it together with the dirt discharge.

To Shanghai Pilsa monopoly 20 hot water pipes, 20 yuan a 4 meters, with a red line. Slotting + water connection pipe bargained for 14 yuan 1 meter. Pipe fittings 1 to 8 yuan 1 piece.

The size of the structural surface of the PVC branch pipe installed in the bathroom is not specified in detail in the specification. Generally, according to the standard atlas or conventional practice, the retention is 30 40mm higher than the ground of the building. >>>More