I'm helping my neighbor try to get her system going. We are currently in a "drought" and the water tables have dropped. I'm pulling my hair out over this. I suspect a lack of pressure from the pump or the system is stretched too thin. Pictures included because they are worth 1000 words. Specifics are listed below: Shallow well with 3/4 hp Sta-Rite that pumps 10 gpm. 2 gal pressure tank on top with 20psi of air. Not sure what the pressure switch is set at but the pump is not cycling. Zone 1- (6) Pro sprays with VAN's operating at 15 psi. This zone will not pop up, I suspect due to the low pressure. Zone 2 and 3- (3) I-20's operating at 25 psi, appear to operate correctly. Zone 4- (6) Pro sprays with VANs operating at 10 psi. Again, this zone will not pop up. Zone 5- (3) Pro sprays with 25 psi no problems noted. I have a few questions: 1. Is there any way to increase the pressure from the pump? 2. How does the pressure tank relate to the outlet pressure? 3. Are the spray zones stretchd too thin?