So your are certain its a deep well. Once I remove the pump but leave the casing adapter inplace "untouched" will I have access to be able to check the depth of the water in the well. My though is..if its a deep well pump "but" the water level is 20 feet down I may still be able to pull this conversion off. I am so glad I have asked questions and been educated by you so as to not do damage in my desire to do something with this system. I know nothing about the leathers you speek of but definately will not mess with the casing. I dont know if the pump is bad or not. I attempted to prime the system years ago but may have done it wrong resulting in no water. How do you tell if the pump is bad? It turns on and doesnt whine like a bad car water pump. I priming difficult with this system?