most of our sales offices experiences this kind of plumbing problem, after the flushing out water in the water closet, the retardation of water (lowering of lower to be more specific) is very evident. There are also times wherein we experience backflow? How can we solve this problem? I am suspecting that there are no vents installed in the system. Thanks in advance
No announcement yet.
retardation of flow and back flow plumbing problems