What should I do to "fix" this. I checked all around the pool and it seems like this is the only spot like this.
https://www.dropbox.com/s/0nq7zf0ivpj6v0b/2014-05-03%2011.53.11.jpg
Underside of top rail ... any idea what those white dots are ?
https://www.dropbox.com/s/l3zg0eieeoai7y2/2014-05-03%2011.53.30.jpg
https://www.dropbox.com/s/0nq7zf0ivpj6v0b/2014-05-03%2011.53.11.jpg
Underside of top rail ... any idea what those white dots are ?
https://www.dropbox.com/s/l3zg0eieeoai7y2/2014-05-03%2011.53.30.jpg