My name is Todd and I came across this site while researching Zeobrite. I have owned an above ground pool for 5 years now. I'm ashamed to admit that I still know very little about pool maintenance. I used to have a "pool store guy" that solved all of my problems, then I moved to a new state and I have had problem after problem.
I was researching Zeobrite because when I was vacuuming some sediment I noticed the sediment was coming back out the filter return.
After reading some of the vast information on this site, I am going to purchase a test kit. and do more studying.