As the temperature drops, there’s nothing better than soaking in a warm spa pool on a crisp winter evening. Winter is actually one of the best times to refill and refresh your spa pool, ensuring clean water, balanced chemicals, and optimal performance during the months you’ll likely use it the most.

If your spa water has been sitting for a while or is due for a change, follow this simple step-by-step guide from The Spa Shop to prepare your spa for winter relaxation.

Step 1: Turn Off the Power

Before doing anything, make sure your spa pool is completely powered off at the mains or control panel.

This prevents pumps or heaters from running while the spa is empty, which could cause damage.

Step 2: Drain the Spa Pool

Locate the drain valve on your spa pool and attach a garden hose if needed to direct the water away safely.

Tips:

• Drain water to an appropriate outdoor area or drain.

• Avoid draining onto lawns or gardens if chemical levels are high.

• For a deeper clean, you may want to run a pipe cleaner through the spa system before draining.

Allow the spa to empty completely before moving on.

Step 3: Clean the Spa Shell

With the spa empty, take the opportunity to clean the interior shell.

Use:

• A non-abrasive spa cleaner such as BioGuard Squeaky Clean

• A soft cloth or sponge

This helps remove:

• Biofilm

• Dirt and body oils

• Residue around the waterline

Avoid household cleaners, as they can damage spa surfaces or affect water chemistry later.

Step 4: Rinse and Clean the Filters

Your filters play a big role in keeping water clear.

Steps:

1. Remove the filter cartridges.

2. Rinse them thoroughly with a garden hose.

3. If they’re very dirty, soak them in a filter cleaning solution such as CW Filter Cleaner.

If the filters are old or worn, winter is a good time to replace them for better filtration.

Step 5: Refill the Spa Pool

Place your garden hose into the filter compartment or filter well when refilling. This helps prevent airlocks in the plumbing system.

Fill until the water level reaches just above the highest jet.

Step 6: Power On and Balance the Water

Once the spa is full:

1. Turn the power back on.

2. Let the pumps circulate the water.

3. Test the water using spa test strips.

Balance the key levels:

• pH

• Alkalinity

• Sanitiser (chlorine or bromine)

Balanced water keeps your spa safe, clear, and comfortable to soak in.

Step 7: Heat It Up and Enjoy

Set your spa to your preferred temperature (usually 37–39°C) and allow it time to heat.

Once it reaches temperature, your spa is ready for relaxing winter soaks.

There’s nothing better than stepping into warm, bubbling water while the air outside is crisp and cool.

Winter Spa Tips from The Spa Shop

To keep your spa running smoothly through winter:

• Keep your spa cover on to retain heat

• Test your water weekly

• Clean your filters regularly

• Maintain proper sanitiser levels

Regular maintenance helps reduce chemical use, improves water clarity, and extends the life of your spa.

Need Spa Supplies or Help?

At The Spa Shop, we stock everything you need to keep your spa pool in perfect condition this winter — from chemicals and filters to replacement parts and expert advice.

If you need help with water care, maintenance, or spa servicing, our team is always happy to assist.

Visit The Spa Shop in Rotorua or shop online to get your spa winter-ready today.