Introduction to Backwashing of Swimming Pool Filters

1. Backwashing time regulations When using swimming pool water as the backwashing water source of the swimming pool filter, in order to ensure the normal use of the swimming pool and not reduce the useful water depth of the swimming pool, the backwashing time of the swimming pool filter should usually be selected every time or every time in the swimming pool. Do it after the day is open, not when the pool is open. 2. The backwashing frequency of the swimming pool filter In the normal working process of the swimming pool filter, due to the interception of many impurities on the surface of the filter material layer, the space of the filter material is blocked, resulting in the continuous increase of pressure loss and the continuous reduction of water output, which cannot satisfy the pool water. Water quality renewal needs, at this time, it is necessary to backwash the swimming pool filter to wash away the trapped impurities. Therefore, the time required from the swimming pool filter to filter water to the swimming pool filter for backwashing is called the backwashing frequency.

If one of the following conditions occurs, the swimming pool filter should be backwashed. 1. During the operation of the swimming pool filter, the pressure difference between the water inlet and the water outlet did not reach 0.06mpa, and the continuous operation was less than 5 days. However, due to some special reasons, the water in the swimming pool was not drained and it was planned to restart after a period of time. If it is opened and used, the dirt and impurities trapped on the surface of the filter material layer of the swimming pool filter are easy to solidify and harden, and cracks occur in the filter material layer. Unable to get useful filtering. Therefore, all swimming pool filters should be backwashed one by one before the swimming pool program is out of service. After the flushing is completed, the water in the swimming pool filter should be drained.

2. In order to prevent the trapped dirt from solidifying, although the pressure difference between the water inlet and outlet of the swimming pool filter has not reached 0.06mpa, the swimming pool filter has been continuously operated for more than 5 days. 3. The water head loss of the swimming pool filter running to the filter material layer is 0.06mpa higher than the water head loss when cleaning the filter material layer or reaches the pressure difference value specified by the swimming pool filter manufacturer. According to relevant materials, the resistance loss of the quartz sand swimming pool filter is about 0.02-0.025mpa.

3. Requirements for backwashing In order to save equipment investment, swimming pool filters are usually not equipped with special backwashing water pumps, but use pool water circulation pumps. Therefore, in order to facilitate the operator to monitor the progress of filtration and the sufficient capacity of the water pump required for backwashing, when there are multiple swimming pool filters in the swimming pool, they should be backwashed one by one, and it is not allowed to filter two or more swimming pools. The device is backwashed at the same time. Poolking is the best swimming pool equipment manufacturer and supplier in China. Poolking exists to provide the highest quality swimming pool equipment while offering competitive pricing..