Spa has weak jet pressure or some jets barely flow.

Safety first: Turn off power at the GFCI breaker before removing jets or opening plumbing.

• Clean filter: Remove and thoroughly rinse the filter. Test jet pressure with the filter removed briefly.
• Check diverter valves: Rotate any top-side diverter valves fully in both directions to ensure they are not restricting flow.
• Bleed air: Loosen pump unions slightly to release trapped air, then retighten.
• Clean jet inserts: Remove individual jet inserts by twisting counterclockwise and pulling out. Soak in a descaling solution if clogged with calcium, then rinse and reinstall or replace with new Arctic Spas jet inserts.