I'm working on an estimate for an acreage and I just need some validation on my math work for the pump side of things. The local irrigation district is installing the pump and line for the customer and have recommended a 1hp pump, the homeowner is thinking that he will upgrade to a 1 1/2 hp. The distance from the pump to his property is 1300 feet. The endpoint will be about 50 feet above the pump. The line will be 4" PVC. So... looking at the 1 1/2hp pump... we have 50' head, I'd LIKE about 45psi for the rotors, which would be 104' head... so... 154' head Does this seem right? The line of pumps that the irrigation district are recommending (Myers Quick Primes) don't even come close to that much head regardless of the motor size. What says some of you with more pump experience?