Adding Heads to Existing Zone – Check GPM, Use MP Rotators

3-zone Nelson system, spotty coverage. 4-zone controller. Want to add heads without new zone.

Constraints

• Must calculate current GPM vs available.
• Tee off lateral with ½" PVC, not swing joints.
• Consider MP Rotator nozzles: 1 GPM, throw to 20 ft, adjustable arc.

Benefit

MP Rotators ($4–5 each) save labor vs trenching new zone. Match precipitation rate.