I just purchased a house with an in-ground pool and trying my best to revive it. I have not started the pump or filter yet which I hope to do this weekend. I noticed what may be DE or other fine material on the bottom in the deep end. My question is should I vac to drain until I get the material up or just run it through my DE filter. I would rather not waste all the water if possible as its pricey in my area.
I attached some pictures but its hard to see.