The following are characteristics of Modernism: 1  Marked by a strong and intentional break with tradition. 2  Belief that the world is created in the act of perceiving it; that is, the world is what we say it is. 3  There is no such thing as absolute truth.  No connection with history or institutions.
Pool filter cartridges can run for about 2,000 hours for a filter pump. Usually filter cartridges have to be replaced once every 1 or 2 years. The life of the filter will be less if you enter the pool with suntan lotion, deodorants, mousse, styling gels, and other damaging chemicals.
DE POOL FILTERS. The D.E. filter is the most efficient type of pool filter on the market. It can trap particles down to 3 - 5 microns; well below what the naked eye can see. DE filters, like most pool filters, use a pressure gauge toindicate a need for backwashing when it reads 8 - 10 lbs. higher than its clean reading.E filters, like most pool filters, use a pressure gauge toindicate a need for backwashing when it reads 8 - 10 lbs. higher than its clean reading.