What is the best method to clean this film from my waterline tile? Its only on some tile around my shallow end. Any suggestions on how to prevent this in the future? I am a new pool owner and appreciate the feedback.
Hard to see but is it a grimy, sticky layer? If so, most likely sunscreen, hair products, etc. You need to scrub the water line every once in a while to remove it.
Thank you! Do you think dirt like this can be due to water chemistry? My CYA is 80 and FC 10. CH is 300 (think I can raise), pH 7.4 and TA 70. Thanks again for your input.
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