I was starting to get my pool ready to close yesterday when I thought I'd check the light niche for algae. When I pulled the light out the niche belched out this gray brown cloud. The niche was full of this stuff. It was impossible to capture any of it as it just disolved when I tried to collect it. I've got the clorine up to 20 and I dumped in some algecide as well. When we measured the chemistry this morning the ph is off the charts. We are using the Taylor Basic kit that comes with the TF-100 kit. Using the pool calculator we entered 8.2 (highest reading on the tester) for the ph with a target of 7.2 it told us to put in 132 ounces of muratic acid. We did that about noon today. This evening I tested it again and the test originally showed 7.5 but less than a minute later it was purple. The pool became cloudy last evening but is clearer this evening. We have a 28,000 gallon, 18' X 36' inground vinyl lined pool with a S240 Hayward sand filter. We live in Wichita, KS. Should we expect to see a spike like this with introduction of such a large amount of algae? What would you recommend we do to combat this? Any help is appreciated.