I am in the process of restoring an old Sears & Roebuck house in Clifton, VA. The house was built in 1925, and presumably the well is just as old. The pump set up is currently a Jet pump/pressure tank – not sure how old. This system, however, needs to be replaced and I have a decision to make. This is (obviously) not my area of expertise so I am trying to get some more info. Should I switch to a submersible set-up, or simply replace the Jet/Tank set-up? Why? Also, how much (ball park) should either cost? I am not sure how deep the well is, but I do know that , except for a vent hose, it is NOT above ground at any point. I appreciate and advise you can give. You can email me at the address below.