What is an air gap?
The air gap is an unreded space between the wall outputs and an open container or flood level of the accessory. An example of the air gap is the space between the faucet and the sink. This gap prevents backflow of contaminated water from the sink back to the faucet without a certain modification of the system. The air gap is the most economical method of preventing back flow of contaminated water back to the fresh water system. If there is no air gap, the osiff will occur if the water supply in the house has lost pressure and the sink is higher than the point at which the water enters. This can be illustrated by connecting the hose to the faucet and immersing the hose in the sink filled with contaminated water. Under the correct conditions, the return flow is possible.
When a device is installed, such as the dishwasher is looping as high as possible under the cabinet and provides pipes. This creates an air gap that prevents the water flow if the pump stops functioning. There are situations that make the loop hose very difficultŽno and impractical, and in this situation the installation of a mechanical air gap is required.
Many plumbers prefer to install the air gaps produced, regardless of whether a high loop may be. This is because it provides greater protection against water return. A continuous connection in the case of a high loop installation may still allow you to be packed with return of the forils, even if the probability is low.
In order to prevent dirty water to prevent the water system into the water system, many plumbing codes require backflow prevention. Inspectors of plumbing plumbers are often obliged to analyze these accessories to ensure that they are correctly deprived and installed. The air gap is a non -technical form of backflow prevention and must be twice the internal diameter of the pipeline. This accessory should have a diameter of at least 1 inch (2.5 cm) to qualify.
Although most experts are considering a gap in the air to provide maximum protection from the return flow, it is not always practical. It may be bypassed by plumbers who may not have patience or expertise to install it properly. Despite any minor problems associated with the installation of this accessory, the protection it provides is worth any installation problems.