First I needed to fix the green water after being gone for a couple of months. Then I needed to replace the pool pump (I'm now running a Pentair SuperFlo VS). Then the was water was cloudy (still working on that) and now even though I just vacuumed the pool a few hours ago, it looks as if I haven't. The bottom is covered in what looks like salt and debris. I vacuumed it all out this morning but now it looks like I haven't even touched it. Could my filter be the problem? I have a salt water pool with a DE filter that I backwashed and rinsed after vacuuming. I poured more DE into the skimmer as well.