well, I figured out that I needed a deep well pump instead of a shallow pump for my 50 foot deep well. I am considering buying a convertible 3/4 hp deep well pump from sears. My well is a stab well with a 1 1/4" verticle pipe. But do I need a convertible pump, or can I just plug the convertible feature?? Any help would be appreciated. Thanks and have a great day.