hi all. I have a mastercraft converible jet pump that my x husband installed for me....it was missing the adapter that makes it into a shallow well pump, there was 2 holes in the front, so the x capped off the top hole with a plug and just hooked up the incomming water line to the bottom one, and now nothing is working....do I need that adapter or is it ok to cap off that top nozzle thing? any help with this would be greatly aprecciated