You should delete your other same info/question post.
You need water tests for iron, pH, hardness and tannins at least. Then whatever water treatment equipment it takes to solve the problem.
The pump should be deeper in the well; like 15' to 20' off the bottom. Now it is in the zone of water that has the oxidized particulates in it, that makes the water 'dirty' until you run enough of it off to make it clear.