Should the toilet with drainage on the same floor be equipped with a dark floor drain, and how to co

GB 50015-2003 (2009 Edition) The explanatory provisions of the Code for Design of Building Water Supply and Drainage (2009 Edition) mention that floor drains can not be set up in places where water is not often drained. There is no floor drain in Europe, and the United States explicitly prohibits the use of floor drains. THE DRAINAGE OF THE SAME LAYER REQUIRES THAT THE HORIZONTAL BRANCH PIPE CAN NOT BE SET UP A U-BEND, AND THE DRAINAGE FLOOR DRAIN ON THE SAME FLOOR MUST COME WITH A 50MM WATER SEAL.

The lowering method is to lower or partially lower the floor slab of the bathroom by 30 40 cm, and after the laying of the drainage horizontal pipe in this space, the sinking space is filled with filling material, and then the bathroom floor is made. It is currently the most common and mature drainage practice of the same layer.

The advantages of this approach are:

1) The water supply and drainage pipes are arranged in the falling plate. There is no obvious pipe in the bathroom, the sanitary ware cloth is flexible, the drainage noise interferes less with the lower layer, and the construction is more convenient;

2) The bathroom can also not be made of suspended ceiling, neat and beautiful, compared with the lower drainage mode, it occupies less space in the lower floor, and improves the net height of the bathroom.

3) In the event of water leakage or maintenance, it will not affect the use of the lower floor residents.

Its disadvantages are: 1) the structural descending plate treatment increases the cost, and at the same time fills the reduced space with filling materials, increases the load, and is not economical.

2) the water in the sinking slab is not easy to discharge, the ground must be destroyed during maintenance, take out and fill the light stick concrete, it is more difficult, and the workload is large, therefore, the key to the practice of lowering the slab is to do a good job in the waterproof measures of the floor slab. The bathtub can also be partially sunk into the landing plate space to lay, which is more beautiful.

2. The practice of laying the drainage pipe on the ground is more widely used in the kitchen drainage design.

On the one hand: after the kitchen in the modern house has been renovated twice, the ground sewage cross-flow, the dirty and messy phenomenon no longer exists, and the setting of floor drain is no longer very necessary;

On the other hand, the sanitary conditions of the ground network are not good, therefore, the drainage design of the kitchen is generally not considered and the floor drain is generally not considered, so the design of the horizontal drainage pipe in the kitchen is mostly laid on the kitchen floor. However, when laying on the ground, the routing of the pipeline should be noted, not across the door or traffic route, generally should be against the wall cloth and, it is best to combine the cabinet layout, there is generally 150 mm space under the cabinet, located under the cabinet is not loud and closed.

Of course. The diameter of the horizontal drain pipe in the kitchen is not more than 50 mm. It can also be buried in the side wall of the kitchen.