In order to reduce the pressure loss caused by the friction of PVC Lay Flat Hose, the vertical laying of PVC Lay Flat Hose should be chosen. According to the structural characteristics of each high-rise building, the laying of PVC Lay Flat Hose should be chosen according to local conditions. There are three main laying methods of PVC Lay Flat Hose:

(1) vertical laying along the inner staircase shaft or patio;

(2) vertical laying along the outer wall (balcony, window);

(3) vertical laying along the external evacuation staircase.
The three vertical laying methods of PVC Lay Flat Hose are better to apply PVC Lay Flat Hose from top to bottom. You can also take the safety rope upstairs, put one end of the rope upstairs on the ground, tie the PVC Lay Flat Hose and pull it upstairs. This approach is much slower than the previous one.
The weight of each PVC Lay Flat Hose interface is about 60_after filling with water. It must be tied to the lower end of each PVC Lay Flat Hose interface by high-strength PVC Lay Flat Hose cable or safety rope. PVC Lay Flat Hose is easy to be cut or deformed by the frictional edge of the wall at the 90 degree right corner bend. It should be wrapped and paved with soft fabrics such as clothes, quilts and curtains at the bend.
PVC Lay Flat Hose should be connected with a water divider with automatic pressure relief function from the vertical bend of the ground to the vertical section of the PVC Lay Flat Hose line in case of water shutdown. Ordinary water dividers can also be used. When water shutdown and pressure relief are needed, only one outlet can be opened.