Hi, I live in South Carolina and I found your site when I was researching a problem with algae in my pool. It has been very helpful I have an above ground, pool that holds approximately 13,500 gallons. My water is clearing up pretty good but continues to have some cloudiness. Hopefully over the next couple of days it will continue to clear. I have noticed a number of post referring to A TF-100 pool testing kit, where can this be purchased? I have learned quite a bit in the short time I have been on here.