My husband and I recently bought a pool and apparently got pool stored. We were talked into buying a perma salt system since we didn't know much about pools. We are still in the process of filling the pool up with water. I don't really want the pool to get stained by the copper or to be unsanitary and would rather not use the system. The water is just normal water from the city. Nothing has been put in it yet so we don't have to worry about already having copper in it. Is it possible to just turn the cartridge filter that is installed already and just not turn the perma salt box on? Or would we have to get a different filter system?