Hello all,
Recently I have noticed some strange stains on the pool surface, I have only noticed them on the shallow end. It looks like rust embedded into the pool area confused, and even scrubbing it off persistently with a pool brush didn't help.
Any idea what it might be? See in the attached photo, the smudged brown point just in the middle of the frame.
Many thanks in advance!
Recently I have noticed some strange stains on the pool surface, I have only noticed them on the shallow end. It looks like rust embedded into the pool area confused, and even scrubbing it off persistently with a pool brush didn't help.
Any idea what it might be? See in the attached photo, the smudged brown point just in the middle of the frame.
Many thanks in advance!