I’ve seen that in our pool before, though it’s usually after someone with lots of sunscreen on has been in the pool. My guess is the reaction with chlorine causes it.
Re: black lines inside skimmer
I’ve seen that in our pool before, though it’s usually after someone with lots of sunscreen on has been in the pool. My guess is the reaction with chlorine causes it.
22'x40' Grecian Lazy L 20K gal IG vinyl pool; Aqua Rite SWCG T15 cell; Hayward Pro Grid 6020 DE filter; Hayward Superpump 1hp pump; 12 hrs; Taylor K-2006; city; PF:6
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