Jets are weak or some seats have very little water pressure.

Safety: You can perform most of these steps with power on, but keep hands away from moving parts.

• Clean filter: Remove and rinse the Caldera filter cartridge thoroughly.
• Check diverter valves: Rotate any diverter valves slowly through their full range to direct flow to different seats and find the strongest position.
• Bleed air: Turn pumps on and off several times to purge air. Crack open unions at the pump slightly (with power off) if needed to release trapped air.
• Clean jets: Remove individual jet inserts (if your model allows) and soak them in a descaling solution to remove calcium buildup, then reinstall.