D.E. filters are typically known for their efficiency in turning unsightly water clear in a short period of time. Add that to the convenient backwashing feature and D.E. is a filter pool owners cannot live without. However, what many pool owners over look is the fact that D.E. filters like cartridge must be taken apart and cleaned periodically. This is quite a daunting task for pool owners, especially those who have a vertical grid D.E. filter. With this in mind, Complete POOL SERVICE has developed programs catered to D.E. filter maintenance.