2. The purchase of aluminum-plastic pipes or PP-R pipes and accessories must meet the national testing standards to prevent inferior pipe fittings from entering the construction site and avoid hidden dangers.
3. Waterway slotted pipes and fittings, joints must be firm, do closed water test, check whether there is water seepage, if there is any problem, it must be solved immediately. Do the test again.
4. No problem, please ask the owner to sign for acceptance, all water pipes will be blocked with cement mortar, and the garbage on site will be cleaned up and delivered to the next team.