Small Light Brown Spots on pool Floor

I agree with you that the stains are organic in nature. I will post test results today. I do have an outdoor pool cage. After reading some more posts I believe you hit the nail on the head Texas. I have an oak tree branch extending over the pool cage in that corner of the pool. I think its time for that branch to go bye bye. Thank you.
 
I agree with you that the stains are organic in nature. I will post test results today. I do have an outdoor pool cage. After reading some more posts I believe you hit the nail on the head Texas. I have an oak tree branch extending over the pool cage in that corner of the pool. I think its time for that branch to go bye bye. Thank you.
That's what it is, it's from your tree, Chl takes it out,
 
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