This is the first time it has ever happened....tried a vitamin c on it and it cleared about a 1 foot square area in about 2-3 minutes. This pretty much confirms that it is iron! Guess I have a project for this weekend now.
I pour the salt in and I do brush afterward. If you check around the forum you will find that I am a firm believer in brushing after adding any chemical to help distirbute it!I like to dumpt the salt on the ledge since it is in the direct flow of the return and this helps to move it around the pool also. Never had this happen with Morten Pellets, Diamond Crystal Sun Gems solar, Morton Pool or Diamond Crystal Pool!