I am not sure if this is normal but my pool is developing a ring at the water line. Like a film. Its in the skimmer too. Kinda feels sticky/greasy. My water tests are normal and I have had people wearing sunscreen on in the pool. When I get in I don't wear sunscreen and when I get out I feel sticky. Any ideas as to what this is? It has been coming on gradually but last night it was the most noticeable.
I am going to run a new set of water tests in just a few minutes and post them here just in case they are needed.