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I still think it is algae...when sprayed with bleach, they dissipate. If already black and hardended it takes longer for bleach. This morning on the weirs in skimmers, they were black not like the pics on sock. I suppose they start out that way like on sock and if left alone they harden. I am...

Thanks soooo much. Will be ordering the kit recommended on this site. For now I'll have to use the store. Chlorine levels that high are not dangerous to swim in??? Kind of apprehensive, I know. After using chlor tabs for so long (15 years) above ground pool for 5 years and 10 years with the...

Water results 2 posts up, can you guys help me.

Yes I agree the $342 for Endure was CraZy!!!!!!! I am going to try using this new pool store.....their test results were computerized also which was nice because it broke down the chlorine levels.

Had my water tested at new pool store today closer to where I live. They haven't seen this "algae" either. I have to forward pics to their main person with many years in the pool business. Here are my results: Free chlorine 5.9 ppm Total chlorine 5.9 ppm Combined chlorine 0.0 ppm...

Showed up after clarifier but before algaecides. Also note that when they attach to tile or grout they tend to harden and turn brownish/black. I suspected black algae since they are hard to scrub off when hardened. My pool builder didn't think so. I am at a loss and somewhat irritated with...

BTW, I live in south louisiana---lots of heat & humidity!!! This started showing up in the 98 plus degree heat.

LOL, yea it is a blob, at least on the sock. And yes there was chlorine in it. When I pour bleach over the spots they break up and almost dissolve so I thought it was algae. Haven't added anything except algaecide from Walmart (hth brand) and expensive algaecide from pool store. A clarifier...

You learn something new everyday!!

photobucket.com/momx2pool NOT the one from above post

Hope I did this right--photobucket.com/momx

Pics of algae file size is too large and won't let me attach them, any ideas??? I tried to save to zip file, but it still won't upload.

Thanks for all the replys. Still have algae but it is less than before. Pool builder is coming out either late this week or beginning of next week to make repairs to waterfall (wiers set too far back) and fill in crevis void in skimmer that tile crew failed to grout!! I think this is where the...

New to this forum-I have a gunite pool which was resurfaced in late April. Previous surface was used for 10 years with no problems of algae EVER! I have been fighting algae at the waterline and ABOVE, yes above water, for 5 weeks. It tends to grow on grout, tile and on the skimmer basket wiers...