We seem to have hardened algae(green) around the bottom edges of the liner. I have brushed it over and over and it just doesn't come loose. I rubbed it with my foot and it feels hardened..like rough and like it calcified to the liner? Can that happen if you don't brush it when it forms? We were lazy with the pool this summer since no one was really using it. The water is clear, I just can't scrub the algae off.
Hardened algae on intex liner
- Thread starter julie492
- Start date
Doesn't sound like algae to me. Can you provide us a full set of test results?
pH
FC
CC
TA
CH
CYA
pH
FC
CC
TA
CH
CYA
Okay, I was finally able to get out there today to get some numbers for you. There are a few leaves on the bottom of the pool that I need to scoop out this evening that fell today. here are my numbers:
FC 3
CC .5
TC 3.5
pH 7.5
TA 160
CA 380
CYA 55
And here is a pic I got with my phone while getting the numbers.
FC 3
CC .5
TC 3.5
pH 7.5
TA 160
CA 380
CYA 55
And here is a pic I got with my phone while getting the numbers.
Attachments
ya, i'm thinking MITS might be right. Has your PH been above 7.8 for any extended periods?
Honestly, I don't know if the pH was up to 7.8 or higher for an extended time. I didn't test it the whole month of July. I know...my bad.
If I lower the pH for an extended period, would it loosen it or dissolve it?
If I lower the pH for an extended period, would it loosen it or dissolve it?
Perhaps, but I would elevate the chlorine levels first. Keep your FC up around 10ppm or so for a week and see what effect that has. ANY chance you get, scrub the stain trying to loosen just part of it.
If that fails or you see no improvement after a week or so, then you can consider pH but that's a little trickier and you'll have to test carefully.