Could this be algae or dirt/pollen?

[dawndenise]

Matt...thanks for the info. Actually it was itstoohot that had the initial problem in this thread. I had just jumped in because there was, IMO, a very important point being made by ChemGeek that borates may pose a problem in pools where canines drink a lot of pool water. While borates appear to have many benefits, I don't believe that any posts prior to that one brought up the issue of companion animals and borates.

But, I AM glad you made a response because it allows me to thank you for your postings on mustard/yellow algae. I had a problem with it last September which I detailed here: http://www.poolforum.com/pf2/showthread.php?t=5921 and here: http://www.poolforum.com/pf2/showthread.php?t=5953 and it was your experience and previous postings along with ChemGeek's responses that got my pool cleared up. Without your postings, I would have never imagined I'd have to go to that high a level of chlorine to get rid of the stuff.

[dawndenise]

Hi Evan,

Guess we were posting at the same time. I'm glad to hear your animals are staying away from drinking your pool water with the borates. I may have to seriously think about re-training my gal to not drink from the pool if I ever hope to add borates and get out of the pH/TA cycle I'm currently in, but that's a post elsewhere.

Still, she's really a swimming/splashing/drinking fool....