Hand brush filter by the filter body, stainless steel filter screen, cleaning brush holder group with handle, sewage valve and pressure gauge, cleaning brush holder group through the filter cover, cleaning brush installed inside the stainless steel filter screen, water flow through the hand brush filter, impurities are intercepted by the filter, when the need to discharge the blowdown, as long as open the sewage valve clockwise shake the handle for several turns, you can complete the sewage discharge, no need to disassemble the filter to clean the internal filter screen, clean the sewage discharge process water flow is not interrupted.