That kind of of filter do you have?

Hayward filter that uses DE

Happened to me two weeks after pool was built. I don't have salt, but I do have a DE filter. I wouldn't let it sit-I did and it cost me a day. Here is what I did; filter backwash, vacuum backwash, brush to drain (rinse & repeat 24/7) until clear. Vacuum to waste once in awhile if you can. It took me three days to see the bottom and another two days to get clear. I went through about 50 lbs of DE maybe more, but it was worth it to get the pool clear.

If you have a 4 or 6 position multiport valve move it to 'recirculate' or it maybe called 'pool/spa boost' and add floc. Run the pump a few hours to circ. the floc.. Let it sit off until clear- maybe 24hrs. Vacuum pool to 'waste' while adding more water. Repeat if needed. Shock hard with chemical chlorine when its cleaned up. Last, rebalance all chems. Repair or improve drainage.

Thanks for the feedback. It's a slow process but I have about 1/4 of the pool bottom clean. I should be done by Sunday.