How many layers of toilet drainage in water supply and drainage projects must be equipped with perme

If it is a budget consideration, there are generally as follows: 1. The material, specification and quantity of water supply and drainage pipes; 2. Specifications and quantities of valves and angle valves; 3. The number of sanitary ware specifications; 4. The number of pipe supports; 5. If it is a concealed pipeline, the number of wall planing ditches and casing should also be considered; 6. Auxiliary materials for various pipeline assembly, etc. Hope it helps!

Do not pass through the drainage bend to the bedroom on the lower floor, otherwise the drainage noise will affect your sleep. Hang a roof in the space where the lower roof passes, and give a manhole.

Drainage pipe diameter: DN100 diameter is required for toilets, DN75 is required for more than 3 urinals, and DN32 is required for washbasins. >>>More

Building Water Supply and Drainage Code Article stipulates that on the domestic drainage pipeline, the inspection port and cleaning port should be set up according to the following provisions: 1. The distance between the inspection ports on the cast iron drainage riser should not be greater than 10m, and the plastic drainage riser is generally set up with an inspection port on the sixth floor, but on the lowest floor of the building and the highest floor of the building above the second floor with sanitary appliances, the inspection port should be set up; When the riser bends horizontally or there is a B-shaped pipe, the bend of the riser and the upper part of the B-shaped pipe should be provided with an inspection port. So first look at what materials you use, and then set it up according to the regulations. >>>More

Your boss is too exaggerated, isn't it? If you don't let someone take you down, you can go straight to the school, ask the master for advice, or go to the next one that someone else does. Combined with design specifications.