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

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

• Clean filter: Remove and thoroughly rinse the Caldera filter cartridge.
• Check diverter valves: Slowly rotate any diverter valves 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. Slightly crack open unions at the pump (with power off) if needed to release trapped air.
• Clean jets: Remove individual jet inserts (if your model allows), soak them in a descaling solution to remove calcium buildup, then reinstall them.