The water supply system with water supply is checked after filling it with air. Then the air is lowered through specialized devices that are installed on the upper part of the risers. The discovered leaks are eliminated. Hidden pipe wiring in building structures – check their sealing in places. The pressure in the water supply system is created by a manual or electric desaliner. Cold water testing is considered successful if within 10 minutes. The pressure on the network does not decrease by more than 0.05 MPa. In this case, the pressure in the network should be 0.5 MPa. The pump system is checked at idle. After the check, the load is filed. Before checking, the pumps are required to be examined for the presence of extraneous objects and reliability of fastening. The pump shaft is first scroll through manually, after the pump is turned on. When any noise or knock appears, the pump is turned off and moved. Well, if no comments, they run up a couple of minutes. The pump should by no means overheat. The cause of overheating may be distortions, tightly tightening, inaccuracy of the fitting itself, dirty lubricant or contamination of parts that rub. The pump is put into operation, only in the absence of malfunctions.
The water supply system begins to be checked from plumbing reinforcement, repair of broken nodes. The pressure after the pump should not differ from the specified in the project. If there is a need, then it is aligned both before the reinforcement itself and after its passage. To do this, the pressure regulator is tuned to the desired value. With the maximum flow consumption by valves for balancing risers, the pressure is tuned in the system itself, so that at the very top it is no more than 0.05 MPa.
In the main riser, the pressure is checked by the manometer, which is attached to the upper floor to the reinforcement. Then, through the mixer installed on the same floor, the volume of water is measured, which was used. Its consumption should be no more than 0.12 l // second.), carry out on each floor.
Consumption in flush tanks is set up and checked during the least water consumption. During this period, the maximum pressure in the network. The water level in the tank should be 20 mm below the overflow itself. This is checked by a change in the location of the float, which changes when the water level changes.