Mustard Algae

[CarlD]

Lisa, she did say pH was high and that she thought it dropping caused the apparent bloom. Also that she maintained pH between 7.8 and 8.2 all summer.

If your pH has been that high all summer, then unless your FC was at the TOP of the recommended maintenance range for your CYA, or higher, then you've been, in my opinion, lucky not to have had a bloom sooner. If your borate level is fairly high and you regularly put in Polyquat 60% it may have inhibited algae growth. Or you just may have been lucky.

But if your CYA is 60 and your FC fell to 5 while your pH was 8 or higher, those numbers work for an algae bloom. It's easily within the range of probability. And once it starts, a normal maintenance range won't stop it.

Now it is also possible you have a lot of pollen, and frequently the stuff is yellow. Allergy season is back on us with a vengeance and even I, who have fairly few allergies, have been suffering.

[Straightleg]

Last time I looked I was a he...(:
I guess I have been lucky then having clear water. with fc around 5 and cya of 60
I shocked and swept the pool. Took FC up to 20

This could have been dirt and pollen. It did not rain for awhile and yes I live in Southern Ohio. I don't have allergies but many around me do and said it is bad for them.


I will keep PH down to 7.4


Thanks
Gerry

[CarlD]

Last time I looked I was a he...(:
I guess I have been lucky then having clear water. with fc around 5 and cya of 60
I shocked and swept the pool. Took FC up to 20

This could have been dirt and pollen. It did not rain for awhile and yes I live in Southern Ohio. I don't have allergies but many around me do and said it is bad for them.


I will keep PH down to 7.4


Thanks
Gerry

Whoops! Mea culpa! Sorry 'bout that....

[FormerBromineUser]

Goals: 7.4 pH and 20 FC. Sounds like a good plan, MR. Straightleg. Post updates!

[Watermom]

Don't fight your pH to try to keep it exactly at 7.4. Some pools just naturally want to be a little higher. As long as you are 7.2-7.8, you are fine.

[FormerBromineUser]

Good point. Btw, your email address apparently needs updating. You can do this in settings at the top of this page. Maybe that's why you can't see your posts???? Not sure but worth a try.