I recently changed my well pump out. It was a 1/2hp and I put the same type in. My sprinker system which has 6 zones run perfectly. When I changed the pump zones 1,3-6 all run perfect. When zone 2 turns on my pressure drops to zero and my pump shuts off so the zone never comes on. I can hold the pressure switch to on and the pressure will build back up slowly, when it gets to 20psi I can let it go and the zone runs perfectly. Can you give me any suggestions?
