Hot Tub Water Clarity FAQ

Q1: Why is my hot tub water cloudy?

Cloudy or milky hot tub water is a common issue caused by suspended particles, too small for the filter to catch. The main culprits are:

• Bather waste: Dead skin, body oils, sweat, lotions, cosmetics, soap residue, and even laundry detergent from swimsuits.
• Environmental debris: Dust, dirt, grass, leaves brought in on feet.
• Low sanitiser levels: Insufficient chlorine or bromine allows organic matter to build up.

Q2: How do I clear cloudy hot tub water?

1. Test and adjust water chemistry: Ensure pH, alkalinity, and sanitiser levels are balanced.
2. Shock the water: This oxidizes organic matter, turning it into gas that escapes. Options include non-chlorine shock, chlorine or bromine granules, or one-shot sachets.
3. Check and clean the filter: Rinse it regularly and use a filter cleaner monthly. Replace the filter at least annually.
4. Use a clarifier: This binds tiny particles together so the filter can trap them.

Q3: How often should I shock my hot tub?

Shock your hot tub at least once a week and after every heavy use session. This helps to maintain water clarity by eliminating organic contaminants.

Q4: What is the best way to prevent cloudy hot tub water?

• Shower before use: Rinse off dirt, sweat, and lotions.
• Rinse swimsuits in plain water: Avoid detergents and fabric softeners.
• Avoid lotions, cosmetics, and fragrances: These contaminate the water.
• Use a foot bath: Remove debris before entering the tub.
• Keep the cover on: Prevents contamination when not in use.
• No pets allowed: They introduce dirt and bacteria.
• Maintain proper chemical levels: Regularly test and adjust pH, alkalinity, and sanitiser.

Q5: How often should I change my hot tub water?

Ideally, change the water every month. However, it’s acceptable to stretch it to a maximum of three months with proper maintenance and sanitation.

Q6: Can I use my hot tub water to water my garden?

Generally, yes, the chemical levels in hot tub water are safe for most plants. However, for sensitive or exotic plants, consult a horticulturalist for guidance.

Q7: How can I save water when using my hot tub?

• Fix leaks immediately: Even a small drip wastes water over time.
• Use a trigger hose for filling: This prevents unnecessary water flow.
• Minimize splashing: Displaced water needs to be replaced.
• Keep the cover on: Reduces evaporation.
• Lower water temperature in hot weather: More comfortable and less evaporation.

Q8: Why should I install a water meter for my hot tub?

A water meter allows you to monitor your hot tub’s water usage, helping you understand your water costs and identify potential leaks or inefficiencies.