A hot tub is a fantastic way to relax and enjoy your garden year-round, but to keep it clean, safe, and running smoothly, regular maintenance is essential. Whether you’re a new owner or simply looking to refresh your knowledge, this easy-to-follow guide breaks down everything you need to know about proper hot tub care and upkeep.
General Maintenance & Cleanliness
A clean hot tub makes all the difference. Debris, dirt, and even insects can find their way into your spa. Wipe down the tub’s interior regularly and keep the surrounding area tidy. This helps reduce what gets carried into the water and keeps your spa in good condition.
Water Circulation
Water circulation is key to maintaining clean, healthy water. Most hot tubs have automatic cycles that circulate the water through the filters. These should run daily, usually for a few hours, to prevent bacteria build-up and ensure proper filtration. Make sure your pump and circulation system are operating correctly.
pH Balance & Chemicals
Testing and maintaining your water’s pH is crucial. The ideal pH level is between 7.2 and 7.8. If the pH is too high or low, it can cause skin irritation and damage the hot tub equipment.
Use test strips or a water testing kit 2–3 times a week to monitor levels. Alongside pH balancing, you’ll need to add sanitising chemicals such as chlorine or bromine to keep the water free of harmful bacteria. Always follow the manufacturer’s instructions and wear gloves when handling chemicals.
Shock Treatment
Shock treatment involves adding a high dose of sanitiser to eliminate body oils, sweat, and lotions. This should be done once a week to keep the water clear and hygienic. You can use non-chlorine shock or chlorine-based shock, depending on your preference and spa type.
Draining and Changing the Water
No matter how diligent you are with chemicals, hot tub water needs to be changed periodically. Aim to drain and refill your spa every 3 to 4 months, or more often with frequent use. Use this time to scrub the shell, rinse away residue, and clean the filters thoroughly.
Water Filter Cartridges
Your filters play a vital role in keeping water clean.
Here’s how to care for them:
Weekly: Remove and rinse with a hose to clear out debris.
When changing water: Soak them in a dedicated chemical cleaner to remove oils and build-up.
Replace: Once the material begins to disintegrate—typically every 1 to 2 years.
General Hot Tub Safety Tips
Don’t set the temperature above 40°C.
Always supervise children around the hot tub.
Keep the hot tub covered when not in use to maintain heat and prevent accidents.
Cleaning the Hot Tub Cover
Your cover protects your spa, so don’t neglect it. Use a soft brush or cloth to remove leaves and dirt. Avoid harsh chemicals—warm soapy water and a damp cloth will do the trick. Always let the cover dry completely before putting it back on.
Set a maintenance schedule:
Daily Maintenance
- Check water temperature to ensure its within your desired range (never above 40°C).
- Inspect for debris in the water and on the cover; remove anything you find.
- Check the cover is properly in place and secured.
Weekly Maintenance
- Test water chemistry (pH, sanitiser levels, alkalinity) 2–3 times per week.
- Adjust chemical levels as needed (chlorine or bromine, pH up/down, alkalinity).
- Shock the water with a non-chlorine or chlorine shock treatment.
- Rinse the filter cartridges using a hose to remove surface dirt and debris.
- Wipe down surfaces to prevent buildup or mould growth.
Monthly Maintenance
- Deep clean your hot tub cover using warm soapy water and a soft cloth.
- Inspect jets, fittings, and the shell for scale, cracks, or residue.
- Soak filters in a chemical cleaner to remove oil and fine debris (follow label instructions).
- Check water levels—top up if needed.
Every 3–4 Months
- Drain and refill the hot tub water completely.
- Clean the entire shell with a suitable hot tub cleaner.
- Soak and rinse filter cartridges thoroughly.
- Inspect filter cartridges—if they’re fraying or misshaped, consider replacing them.
Final Thoughts
Caring for your Hot Tub can be easy when you have a simple routine. Regular maintenance helps extend the life of your spa, reduces costly repairs, and keeps your water crystal clear.
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