Thank you for the reply. Yes, let me provide more context. The tank is about half a mile away, down a valley of steep incline. I would guess that the house is at least 500 to 600 feet above the tank. For the longest time we ran off of a well next to the house, unfortunately with the drought, that well is beginning to dry up, so plan b is the spring. Years ago, the spring was the main water supply before the well. Next to tank by the spring stands a utility pole, where an AC Panel is mounted with a 100-amp service. From that 100-amp panel there is a 30-amp 2 pull breaker feeding the pump that currently sits inside the tank. I am going to pull new number 10 wires from the main panel to the disconnect. Currently there is no pipe going from that tank to the house. I think the old line was a 1-inch galvanized pipe. Probably 8 gallons per minute would be sufficient. In essence I am going to use the pump that is already in the tank, I am just not sure how the system works and what I need to install after the disconnect as far as electrical goes. Do I need a float with a gravity fed system? What does the pump need in order to turn on and off automatically as water comes and goes? I don’t have any information on the pump itself, but I will attach a picture of the pump and old electrical system.