1. Do not damage the original wire piping or plumbing piping when drilling holes. When the electrical conduit is laid, it is necessary to thread the conduit. Do not bury the wire directly on the ground or in the wall. This is not only unsafe, but it cannot be repaired once it is damaged. After the plumbing pipe is applied, the plumbing pipe must be pressure tested. After the pipe is qualified, the next process is performed to prevent the pipe from leaking and causing damage. 2, the kitchen and bathroom, etc. need to do waterproof parts, after the completion of the water must be closed water test, after passing qualifying. 3, wire connectors must be tinned, kitchen and bathroom fittings recommended to do waterproofing, joints can be used high-pressure self-adhesive tape and black tape for dressing. 4. Lamps with a weight of more than 3 kilograms must be fixed on bolts or embedded Hooks. It is forbidden to use wooden wedges to fix them; the metal shell of lamps with installation height less than 2.4 meters must be protected grounded, and the toilet must use waterproof sockets. 5, circuit construction must be standardized, for example, the diameter of 16mm line tube to wear up to 3 lines; strong and weak wires to distance 50cm or more, to avoid signal interference; concealed line tube to be fixed firmly, otherwise the wall is easy to crack. Hidden project hydropower renovation outlet bathroom waterproof bathroom leak Door Locks,Brass Cylinder Knob Handle,Et Or Bk Door Handle,Door Handle Use For Bedroom Bathroom ONLEE HARDWARE CO.,LTD , https://www.onleehardware.com