In multimedia filtration the ...

In multimedia filtration the delta P reaches high, the backwash performed if provision but cartridge have no facilities of backwash. Because the first layer of anthracite coal so there is observed that, generally the multimedia first layer of anthracite coal 2nd quartz and then Garnet and so on. Silica sand and anthracite are the most commonly used types. When silica is not suitable (e.g., in filters following a hot process softener where the treated water is intended for boiler feed), anthracite is usually used.

 However, is about cartridge-style filters rather than backwashing filters. Cartridges are for the most part disposable items. Except in rare cases, they are not backwashed. They are used until they stop up, then they are discarded. Certain cartridges can be cleaned and reused.

Please check your input water quality or replaced the cartridge.