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.
And most of the ideas won't even cost you a penny! 1  Use the pool. 2  Brush & vacuum. 3  Be sure to point those eyeballs & return jets DOWN.  Run the filter a minimum of 8 hours 1  daily. For more ideas about when to run your pool filter pump, click here.