Hunter PGP Rotors Sticking at Right Stop: Gear Damage

Twelve-year-old Hunter PGP rotors in Oregon had several replaced for geysering (known cap/seal issue). Remaining heads function but some stick at the right stop, failing to return left, causing overwatered spots. The user asked about replaceable parts vs. replacement.

The sticking indicates stripped internal gears, often caused by manually forcing the turret during adjustment. Plastic gear teeth break, creating a dead spot. Teflon tape on cap threads can fix geysering. For sticking, slightly adjusting the arc away from the damaged tooth may work temporarily. Replacement is best—heads cost $8–11 wholesale. Buy online and hire labor, or DIY. Regular maintenance: clean filters, check arc settings annually, avoid manual turret turning.