Can't seem to get the water to clear. Been to the pool store and they did the water test, had me add alkilinity increaser, calcium increaser and phosphate remover. told me to filter 24/7 and should clear up in a couple of days. well, it didn't! test strip shows ph, alkilinity and hardness all within range but cyanuric acid very low, how do I increase this? new to the whole pool thing and trying to learn. Any help is greatly appreciated