GaryPurolite1
I would not recommend putting a “filter right on the pump”. The are several ways to correct the iron problem.
You can install an automatic Iron Filter on the line after the pressure tank. The are many different types. Some will use Potassium Permanganate to regenerate the unit much like salt is used to regenerate a water softener. Some use air as part of the iron removal process and then just use a backwashing sequence to clean the filter media. Another method is to feed chlorine into the water supply, add a retention storage tank to allow sufficient contact time between the water and the chlorine and install a filter after that tank to capture any iron that escapes from the retention tank. With a system like that some will want to remove the chlorine after than by the use of a whole house carbon filter or a point of use carbon filter on a drinking water faucet in the kitchen. Iron is not any easy or inexpensive contaminant to remove from water.
