Hot Tub Water Care: Prevent Algae, Biofilm & "Swamp" Conditions

Neglected hot tubs become biologically active—green, slimy, unsafe. Simple routine prevents this.

Sanitizer Options

• Chlorine/bromine: Test before each use; maintain 3–5 / 4–6 ppm
• Ozone generator: Reduces chemical need; test weekly; supplement as needed

Filtration: The Unsung Hero

• Rinse filter weekly with hose (no soap)
• Rotate two filters: one in use, one soaking/cleaning
• Replace annually (2-year life with rotation)

Shock & Water Changes

• Weekly oxidizing shock (non-chlorine MPS or chlorine)
• Drain & refill every 2–3 months
• Purge lines at refill

Cover It

Outdoor tubs: cover always when unused. Keeps leaves, pollen, rain, animals out. Retains heat. Saves chemicals.

Consistency = clear water, healthy soaks, longer equipment life.