Quote Originally Posted by PoolDoc View Post
Woah! Stop the train!

If you brushed it, and got a green cloud, it's mustard algae. End of story! (You could ALSO have sand present.)
Yeah... that's what I've been saying all along. I suspected Mustard Algae... Sand I'm not so worried about. My yard is a sand pit for the most part.

So what can I do to defeat the mustard algae... you have mentioned high phosphates as a contributor to pools that experience mustard algae.

Can I get some phosphate reducer and give it a shot, and bring my shock level to mustard level and maintain it?

Is there a magic potion I can use? Some sort of algae dance? Just keep my FC high and keep brushing and pray it eventually goes away?

A small strategically placed nuclear device maybe?