I've been battling an algea problem the last month. We put our pool in this year and have really enjoyed it. I just took the pool stores advice and had them test my water and bought what they told me to buy. Big mistake! I've now learned they're either morons or scam artists. Our pool is used alot. It's a neighborhood hangout and we usually have 20-30 people a week in it. Some weekends we have that many in the pool at one time. Not lately. We started getting algea everytime it rained. Every stinking time it rained I bought another $20 bottle of algeacide. Well that was enough to p!$$ me off, but now the algeacide aint doing squat. Looking at some of the pictures on here, I'm guessing its mustard algea. It is green, turns brown when you kill it, is on the sides, and swirls like smoke when you move the water near it. Any ideas? Well a friend told me about this site and what a goober I am for spending $200-300 a month on my pool. I've been lurking a week or so and decided to make the switch to BBB. Problem is I don't have a decent test kit yet. What should I do til then? I bought 15 gallons of bleach and plan to start attacking the algea tonight and all week until the water clears up. I figure I can chlorinate by sight until it clears up and by then should have a test kit. Is this a bad idea? My plan is to add 6 gallons of bleach, sweep, add 2 more gallons, wait thirty minutes, and add 2 more gallons, then clean the filter with diluted bleach, and add a gallon each day until I get the kit. If it isnt clearing in a couple days, I'll shock it again. It's Labor Day weekend and my pool is closed!