Speaking of the transformation of old houses, hydropower is generally the place we most need to pay attention to. After all, old-fashioned hydropower design may not be suitable for modern lifestyles. And most of the old houses are very easy to waterproof. If you want to live more peace of mind, it is best to re-waterproof construction. Let us talk about the process and precautions of the old house's waterproof construction and waterway reconstruction today.
First, waterproof construction
1. Wall and ground repair before construction. After the wall tiles are removed, use a cement mortar to level them, and then do waterproof construction to avoid leakage due to uneven thickness. When removing the bathroom wall tiles and floor tiles, carefully check the wall for empty drums. Cracking of the grit river and other phenomena. At the same time, check the seams at the wall and other corners where there are prone problems, and find that the problem must be carefully repaired before waterproofing can be done.
2, brush waterproof coating. Make sure the site is clean and dry before you apply the waterproof coating for the first time. When brushing paint, it must be completely filled with no leakage, solid with the grass-roots layer, no cracks, no bubbles, no shedding phenomenon, the brushing height is consistent, and the thickness must meet the product requirements. Then repeat the steps brush the second time, here we must pay attention to the first and second pass between the waterproof coating needs a certain time interval, until the first pass of the paint can be carried out after the second pass, the specific time depending on the paint may be. The interval time is too short, the effect of waterproofing will be greatly reduced, so the decoration owners should pay attention to whether the construction workers have completed all the procedures. In addition, it is best to do more waterproofing in the house's yin and yang corners, floor drains, and pipes.
3, laying protective layer. In order to prevent the subsequent construction from damaging the waterproof layer, a protective layer should be applied on the surface of the waterproof coating. The protective layer must completely cover the waterproof layer without any omission. It has a firm bond with the grass roots, no cracks, no bubbles and no shedding.
4, do closed water test. In the closed water test, the water at the highest point of the ground cannot be less than 2 cm, and it should be stored for at least 24 hours, and it should be considered as qualified after observing no leakage. If there is a leak, it must be redone and must not be negligent.
Second, the waterway transformation
1, replace the water valve. The waterways of the old houses are mostly galvanized pipes, which are prone to rust, fouling, and bright pipes. The renovation of the new house can be partially rebuilt and replaced. The old house is best replaced from the main pipe diversion valve. Since the bathroom of the old house is not very large, the total amount of replacement of the water pipe will not increase much. Under the premise of ensuring the safety of water supply, the pipelines used in renovations should be as short as possible, but they should also be easy to maintain and look beautiful.
2. The waterway opens and dark pipes are removed. The bathroom of the old house is small. In order to expand the space, it is very necessary for the waterway to open the dark pipe. However, the water pipe buried in the wall cannot have a joint, and it is better to have a complete pipe. In general, nine out of ten pipe leaks are problems with joints. It is best to use pressure equipment to perform the pressure test before the water tube is installed and sealed. The general construction team replaced the pressure test with whether the water pipes leaked under normal conditions.
3. Before cleaning the new pipeline, clean the old pipeline. The original sewage pipes and floor drains of the old houses could not meet the needs of modern people. Only by adding pipes to move the water outlets, before the new pipelines and old pipelines were docked, it was necessary to check whether the old pipelines were unblocked. This time cleaning will avoid many future trouble. Many modern new style toilets cannot directly use the original sewage outlets of existing houses due to problems such as pit distance and drainage methods. It is not easy to move the location of sewage outlets. In order to meet the above problems, it is generally necessary to use a toilet shifter. As long as it is properly installed, it will not affect the drainage.
4. After the waterway transformation is complete, use a pressure machine to perform another pressure test on the water pipe.