Water Quality problem

[Sunbeam lodge]

Just returned from Fla. to discover I have very dark rust colored water with some granite chips and muddy looking sediment. I knew we had iron in the water but not this bad. The pump is pumping 10 gal per minute but it is very muddy looking. I ran the pump at full force for about an hour but it did not clear it up. We have very little pressure at the faucets even though I cleaned some of them. I also have Rheim Instant hot water system that is not delivering what it should Is it possible to have Culligan or integrated water systems install something that would clear up my water. Or better yet can you recommend someone who can fix the problem.
Thanks