After taking apart Hayward DE4820 filter, cleaning the grids, and reassembling, DE filled the pool. The filter has been off for 18 hours but the pool is still extremely cloudy. How long does it take for a large amount of DE to settle to the bottom of the pool? We plan to find the source of the problem, perhaps a broken O-ring or broken gasket, or tear in grids, but we will will backwash DE and hose off grids before reassembling again. My intuition tells me that if I run the filter with no DE in the filter, the DE in the pool will filter out of the water and reattach itself to the grids. This along with whatever settles to the bottom of the pool is how I'm hoping to get the DE out. Thoughts?