When laying PVC lay flat hose, there should not be too much bending. Otherwise, the water flow will be reduced after the water is filled, resulting in the rupture of the hose under the action of strong hydraulic pressure. The torsion of PVC lay flat hose should also be avoided. Otherwise, the PVC lay flat hose will rotate under the pressure of water flow, and it is easy to detach in those places where there are internal buckle connections. If you need to pass through the railway, you should pass under the rail. When you need to pass through the highway, you should try to choose the nearby section with drainage ditch to lay PVC lay flat hose. After the water is filled, it is necessary to avoid dragging PVC lay flat hose on the ground forcibly and move it after two people are lifted as far as possible. Sometimes in the process of dragging PVC lay flat hose, PVC lay flat hose is cut by sharp glass, patches and so on. After lifting, moving can effectively reduce the occurrence of similar things. In the process of assembling PVC lay flat hose, it is necessary to select suitable size joints. When assembling and matching, the end should be processed into a circle. When the joints are loaded into PVC lay flat hose, grease should be applied on the joints and PVC lay flat hose. Do not bake them by fire. If it is impossible to load them, hot water can be used to heat them and then load them into the joints. When tightening, there should be a reasonable amount of room to prevent damage to PVC lay flat hose. After using the PVC lay flat hose, it is necessary to remove the internal residues and place them in the indoor or dry ventilation place, not less than 1M away from the heat source.