Question on mustard algae

agaona

Member
May 22, 2025
8
uvalde, texas
Pool Size
13500
Surface
Vinyl
Chlorine
Liquid Chlorine
I current have yellow algae on some parts of my 13,500 gal above ground pool. My current FC is 7.5 and I have a TC at 5. My CYA is at 40 according to my Taylor kit. I’m new at this don’t know if I should add more chlorine
 
A lot of folks mistake normal algae for mustard algae. Mustard algae prefers to grow in shady areas of the pool. whereas regular algae grows anywhere, often hiding in cracks and crevices making it hard to find and scrub down. Is that how your pool is?

Maddie :flower:
 
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Hmmmmm? I don't see a pic, but it sounds like regular algae. A SLAM process is what's in order!!
Star Trek Spock GIF
 
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