Just opened pool. I have constantly had some kind of material in the bottom of my pool basically for two years now.

It gathers in clumps, usually long, stringy clumps. Almost looks white, grayish. Some are small, others larger. When you run your hand over it, it dissipates.

I assumed it was some kind of algae, but I was surprised to see it in such cold water (65 degrees) upon opening.

Cleaned, shocked, vacuumed to waste following day and looks like I'll have to do the same today. I have followed advice on here to get rid of mustard algae by maintaining shock levels, taking into consideration my CYA level and shocking appropriately.

Does this stuff sound like mustard algae? Isn't it odd to have that in such cooler temps, early in season? I'm in Kentucky and it's been warm, but I have a solid cover and the water was clear at opening.

It's been a consistent problem for several years now.

Help!