I checked the cl level this morning it is hard to tell with this tester. still looks like its near 20ppm. What i did see again was what appears to be sand in patches on the bottom of the pool again. I was told before this is decaying algae?
Re: using the bbb chart
I checked the cl level this morning it is hard to tell with this tester. still looks like its near 20ppm. What i did see again was what appears to be sand in patches on the bottom of the pool again. I was told before this is decaying algae?
10,000 gal 24x16x52 blue glacier above ground sunk in the ground, starbright sd-40 1hp motor, sand filter, chlorine,taylor k-2005, k-1515 on order
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