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.
Turn on the filter and run it 12-24 hours to mix up the old and new water before testing or adding chemicals. Be sure that you are using new testing strips and not expired ones. In order to get the best start for your pool, you should bring a water sample to a pool professional for proper analysis.