Hello -- I think I have mustard algae.

[rkovelman]

Oh wow your awesome for sending me this information. So I assume with what you said you agree that it is mustard algae based on the color and the dissipation factor?

Right now I am using Aquachek Pool & Spa Test Strips: Free Chlorine. It does check for Free Chlorine, pH, Total Alkalinity, and Cyanuric Acid (stabilizer). Today in NJ we had a hot day so my chlorine went from perfect to fail, as well as the pH. I guess that could have added to the mustard algae issue. I would have thought with a DE filter it would pick it up? Although the skimmer is at the top and I have nothing at the bottom of the pool. I did point the jet down in hopes of getting the algae to the surface and for the DE to pick it up.

Also thanks for correcting me on the shock and chlorine, I mis-spoke but meant what you said. I think I might go that route, shock, if you can confirm that what I describe is mustard algae.

Thank you again!!

[Watermom]

We call test strips 'guess strips' for a reason. Get the kit Ben linked above. You need it.

[rkovelman]

Will do! Figured that something cheap would be a guess.

Anyone order from these guys: http://www.vminnovations.com ?

[PoolDoc]

Yes, they are one of the sellers on Amazon. VMI and Amato are the 2 most common. There've been a few complaints about both, with Amato doing a bit better than VMI, but as far as I can tell, they'll both make things right eventually.

For a while, Amazon was selling the K2006C directly, and that was preferable, but currently both the K2006a and the K2006c seem to be available only through 3rd parties.