In the channeling of water through a plumbing channel, there is a particular concern in regard to the presence of “trapped” air in the pipe. In ideal conditions, the pipe will work well if fully filled with water, so any parameters related to the discharge and the rest of the press will be in accordance with the planned. But in reality, there will always be air trapped inside the pipe from sources such as air dissolved in water, leaking holes in pipes, pumps, or when water stops/stops flowing and then recharges. Where’s the air trapped in the pipe? Of course, the air will find a higher place inside the pipeline. In the rising and falling pipelines, the air will be “trapped” within the highest points of the up and down pipeline. The more air that “gathers” at that point will then “hamper” the flow of water in the pipe. The result is that the water becomes disturbed by the flow, or if the drainage is carried out with the help of pumping power, the blockage will cause the pump work to become higher and consequently, the pipe will break due to receiving higher pressure.
Pay close attention to the “peaks” of the rising pipes and then decrease. To be sure, try to tap on the pipe will be heard in the area of ??the peaks will contain air, and this is why water does not flow downstream, trapped air. Simple philosophy, that water will find a lower place to flow, as the air will seek higher ground. When the drainage in the pipeline is stopped (probably due to maintenance, repair) then sometime after the water starts to flow again, some air will be pushed into the pipe. As a result, air-air will be collected in higher places. At the tops of the pipes, the water would have been slowed by the puffing air. The way out is air must be given way out, the way is by punching the pipe. But after the hole must be closed again.