On the acceptance of water, water pipe pressure test is used to determine whether the water pipe connection is reliable one of the common methods, water pipe connection is not good will occur leakage and other conditions, leaving hidden dangers to the household water; Hot and cold water are too close to each other, which may cause the problem of extrusion, so we must keep a distance. We can take a ruler to measure. The distance between pipe diameter is 15cm, and the error is guaranteed to be within 0.1cm. Wire casing and water pipe with the same trough, water pipe leakage is easy to lead to wire damp, short circuit, and even leakage and other dangerous situations. According to the standard specification, water and electricity must be placed in different tanks, 15cm distance, also pay attention to the measurement, if not necessary to minimize pipe joints. The two pipes are connected directly through the elbow as far as possible to reduce joints. During the inspection, make sure that the two pipes are directly connected through the elbow, and there are no extra joints