Is this mustard algae

[Kalannar]

I am in the process of slamming my pool following the advice in the pool school section and was reading through the other articles and came upon one on mustard algae. While reading I start to think about the stuff I thought was pollen. So I took a pic of it to see if anyone thinks it is mustard algae. If so I will do the part in the article to bring up the chlorine to kill it. Thanks.

 

[mknauss]

Does it brush off? If not, you might try vitamin C tablets in a sock on it. Water in parts of Florida is known to have iron in it.

 

[Kalannar]

It brushes off with my finger or pool bush.

 

[mknauss]

Then you should follow the SLAM Process. Once you have passed the three criteria for a successful SLAM, you raise the FC to Mustard Algae level for 24 hours. And then maintain a higher minimum FC for a period of time to see if the MA has been eradicated.

Read Mustard Algae - Trouble Free Pool

 

[Kalannar]

Where is the mustard option in pool math? The article talks about it but don't see it.

 

[mknauss]

I linked the article above.

 

[mknauss]

There is no option for Mustard Algae FC in Poolmath. There is a chart in the linked article.

 

[Kalannar]

Ok thanks for the help.

 

[Rancho Cost-a-Lotta]

The old pool math page shows mustard algae shock levels. You can find the link at the bottom of this page.

 

[Kalannar]

Question on boosting the chlorine for 24 hours at mustard algae level which is 29.4 for me, do you have to maintain it at that level by checking each hour and adjusting, or do you just get it to 29.4 and done?

 

[mknauss]

Maintain it. Every few hours is fine.

 

[Kalannar]

Great thanks.