We recently filled our 22x52 Coleman/Intex pool with our very irony well water. We are using the filter pump with an Intex salt generator. We added 280 lbs of salt and only filter pump is running. The water is brown! We've already cleaned the filter once. It was full of iron. Any recommendations on how to get the metal out of the water? 

P.s. our kiddie pool is clear from same water and no filter.