I began SLAM process 5 days ago to address what appears to be mustard algae, but now I wonder if I have misidentified what I have, and have the additional complication of having slacked in frequency of chlorine upkeep due to emergency work time demands since Wednesday.
My logs are shared so all the details are there, but the main detail I am wondering about is that in the last 5 days, chlorine level never dipped below 13 ppm (pool water at CYA 50 confirmed just before SLAM). Each time chlorine has dipped slightly, a small yellow cloud(maybe beige or brownish?) Swirls behind my brush as I push it across the floor. I push it to the filter intakes and if I do that throughout the day after getting back to 20 ppm, it seems to go away. Yet from what I read, 13 ppm at CYA 50 would be too high for mustard to spontaneously show up, right?
Most annoying thing of this is that the pool was very clear 2 days ago and passed OCLT, and I was getting ready to do the 24-hour extra high chlorine level when life threw a wrench into the process. Two days of waiting too long between chlorine adjustments, and no brushing in that time, and I wake up to a pool that appears clear but the bottom has a pale yellow tinge everywhere. It makes me wonder if mustard algae actually behaves like this, or if I am instead dealing with pollen or even recently-added iron in water?
I have three days where I can pay proper attention to the SLAM, but I've decided to check in first for guidance, in case I'm fighting the wrong thing, or it's the right thing but I underestimated the aggressiveness of this problem.
Additional note: whatever this mess is, I am almost certain what started it--I installed an Intex skimmer from my shed to capture a huge amount of no-see-ums and other tiny bugs that were requiring me to skim manually 2-3 times daily. It had been in there since last season and I may not have sufficiently cleaned it first because this started within hours of adding that thing.
My logs are shared so all the details are there, but the main detail I am wondering about is that in the last 5 days, chlorine level never dipped below 13 ppm (pool water at CYA 50 confirmed just before SLAM). Each time chlorine has dipped slightly, a small yellow cloud(maybe beige or brownish?) Swirls behind my brush as I push it across the floor. I push it to the filter intakes and if I do that throughout the day after getting back to 20 ppm, it seems to go away. Yet from what I read, 13 ppm at CYA 50 would be too high for mustard to spontaneously show up, right?
Most annoying thing of this is that the pool was very clear 2 days ago and passed OCLT, and I was getting ready to do the 24-hour extra high chlorine level when life threw a wrench into the process. Two days of waiting too long between chlorine adjustments, and no brushing in that time, and I wake up to a pool that appears clear but the bottom has a pale yellow tinge everywhere. It makes me wonder if mustard algae actually behaves like this, or if I am instead dealing with pollen or even recently-added iron in water?
I have three days where I can pay proper attention to the SLAM, but I've decided to check in first for guidance, in case I'm fighting the wrong thing, or it's the right thing but I underestimated the aggressiveness of this problem.
Additional note: whatever this mess is, I am almost certain what started it--I installed an Intex skimmer from my shed to capture a huge amount of no-see-ums and other tiny bugs that were requiring me to skim manually 2-3 times daily. It had been in there since last season and I may not have sufficiently cleaned it first because this started within hours of adding that thing.
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