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.
Replace every 30 days while the pool is not in use. The dunks float on the surface but you tie on a weight to keep them in place. Maintain the chemicals in your swimming pool. Chlorinate and shock your pool on a regular schedule as recommended for your pool and size to keep your water clean.