Quote Originally Posted by waste
Sisie, just my guess from the pic, but all the shock in the world won't help your problem. I've seen the same distribution of 'debris' on pool floors many times, and it's a problem with the filtration (either the multiport or the filter itself). IMHO what's happening is that the debris is bypassing the filter and returning directly to the pool. If you'd post filter type and whether it has a multiport, I'll gladly give you my best guess as to how to fix the problem, pump size would help as well. Know that the great folks here want to help you with your pool and the more info we have, the better we can do so.
This looks like a picture of my pool. I would love to know what this 'debris' is. I have vacuumed to waste..tightened up the sand in the filter and it still returns within a few days. Brand new sand filter with 1 1/2 hp hayward pump for 30,000gal pool .Don't mean to threadjack but I'm really looking foward to an answer. thanks..ernie