I have slammed and maintained a FC level of 7-10 with a CYA of 60. I have been scrubbing with a brush and vacuuming regularly. Any Ideas?
What are these spots?
- Thread starter doughboy62
- Start date
I would suspect that it's black algae.
Black algae is a type of bacteria called cyanobacteria. Cyan means blue-green.
See if you can scrap some for examination. Black algae is a dark green spongy bacteria. Don't scrape with anything that could damage the liner.
The bacteria can be toxic, so be careful. I don't think that it's crazy dangerous, but be careful anyway.
Black algae is a type of bacteria called cyanobacteria. Cyan means blue-green.
See if you can scrap some for examination. Black algae is a dark green spongy bacteria. Don't scrape with anything that could damage the liner.
The bacteria can be toxic, so be careful. I don't think that it's crazy dangerous, but be careful anyway.
Oly
Gold Supporter
Is that a tree in the refection?
I agree it is probably black algae but I have Privet tree that produces little purple berries and when they make it to the pool bottom they leave dark purple stains for a few days.
I agree it is probably black algae but I have Privet tree that produces little purple berries and when they make it to the pool bottom they leave dark purple stains for a few days.
I will be replacing the liner in the spring time. Any suggestions on where to buy, what kind and thickness? The current liner is 12y old.
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