Ok so I'm pretty sure it's the metal. I have very bad rust stains in my house from our water due to a high iron content. When i do backwash my filter it is green at first but turns a brown color. When i vacuum my pool i get a light green color when i hit the light spots but when i go over the heavy spots its very dark almost brown. The sides are not slimy at all, but the bottom can fell a little but more gritty than slimy. When i cleaned it today it looked as if the water was brown coming out of my out flow. I've heard that metal does not get trapped in a filter. What can i us to get rid of it???

Do the CuLator metal removers work or should I use one of the liquid metal removers?