The construction of water pipelines is another important part of home concealment projects. Water pipeline construction technology is not in place, violations, etc., seemingly as small as sand, in fact, endless evil. Here are the common problems in the construction of water pipelines.
1. Water pipelines have joints
The pipeline looks normal, but there are really big problems. This is a hot and cold water circuit in the toilets. There are a lot of joints in the waterway, which will inevitably leave hidden troubles in the future.
Supervision explained: According to regulations, water pipeline layout should pay attention to:
1. Pipes buried in walls cannot have joints;
2, the open channel must be smooth after the arc for waterproof treatment;
3, fixed point should use a dedicated pipe card.
2. PPR tube and top surface are not fixed
The PPR tube is not fixed to the top surface and is too close to the bulb. In addition, there is water seepage around the PVC water pipe in the seat.
Supervisor explained: The PPR pipe must be fixed on the top surface. According to the regulations, one point should be fixed every 50 cm. Second, if it is too close to the light bulb, there is a danger that the tube will be roasted. In addition, before the construction, it is necessary to ensure that the toilets of the upstairs households are qualified for closed water acceptance.
3, hot water pipe can not be connected with the wire tube
In addition to the water circuit wiring buried in the wall part of the interface, without the use of a special pipe clamp fixed, the hot water pipe and the wire tube tightly together, easy to deformation caused by a short circuit.
Supervisor explanation: In normal use, both the wire and hot water pipes have heat release, so the two pipes should be kept at a certain interval so as to avoid heat deformation of the pipes and short circuit.
4, the water pipe must be laid horizontally and vertically
Because the water pipes were not laid out in a standard manner and they were not horizontally vertical, the follow-up workers inadvertently leaked the pipes.
Supervisor explained: The laying of water pipelines must be horizontal and vertical, so that follow-up workers can grasp the direction of the pipeline during construction to avoid breakdown. In addition, the construction line must be checked before the construction of the "line is strictly prohibited drill" and other identification lines, so as not to break the underground pipeline. In addition, during construction, attention should be paid to keeping the water in the pipe. Once it is broken, problems can be discovered in time. If the total valve is opened when it is completed, it is found that the pipe is leaked and the loss will be greater.
5, must be pressed after installation
After the water pressure test, the main guard plug leaked and water leakage occurred.
Supervision explained: According to regulations, after the water pipeline is laid, it must be pressure tested and the test can be used normally without water leakage. Hit the air pressure of 8-12KG. The air pressure must be kept for at least half an hour to be qualified.
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