The same thing happens to me every year...I open up my inground pool each year and it's a little swampy. I shock it with liquid chlorine, and it all dies within 6 hours. The next 5 days it clears up considerably, but then it reaches a plateau where it's almost completely clear, but not QUITE completely clear. When it plateaus, the sand filter pressure won't increase at all the next several days, letting me know that it isn't really trapping anymore dead algae.
When it gets to this plateau, I add some Pool First Aid and it's crystal clear within 2 days. I'm not sure if it's the limitation of my sand filter, but for whatever reason, I'm not able to go from swampy to crystal clear using just the liquid chlorine. I feel a little guilty using the Pool First Aid, but it has been necessary to achieve the crystal clearness. Anyone else experience something similar?
When it gets to this plateau, I add some Pool First Aid and it's crystal clear within 2 days. I'm not sure if it's the limitation of my sand filter, but for whatever reason, I'm not able to go from swampy to crystal clear using just the liquid chlorine. I feel a little guilty using the Pool First Aid, but it has been necessary to achieve the crystal clearness. Anyone else experience something similar?