50% of CYA is usually higher than you have to go.
But, mustard algae is tricky -- I'd recommend holding chlorine at a higher than normal level AND CONTINUING TO BRUSH regularly for at least a week after you think it's all gone.
Re: Need quick confirmation that I'm dealing with iron
50% of CYA is usually higher than you have to go.
But, mustard algae is tricky -- I'd recommend holding chlorine at a higher than normal level AND CONTINUING TO BRUSH regularly for at least a week after you think it's all gone.
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