The WSP-J series spin down sediment filter is the first line defense to your appliances. It protects and extends the life of your standard filters by removing the large dirt, sand, and rust particles before they reach the rest of your plumbing system, including water softeners and expensive appliances. The WSP series is flushable and reusable. It is recommended to flush it regularly (daily or weekly), depending on the water usage, sediment amount and the hardness level. However, as hardness tends to form hard scale that clogs the screen, simple flushes may not be sufficient. When necessary, remove the stainless steel cartridge and clean it with a brush and/or soak it in vinegar. Please avoid the mistake of using’fine’ filters for’rough’ water and causing the filters to clog sooner than expected. Use multi-stage filters to achieve one of the best filtering result and longer cartridge life.