🧊 How to Maintain Your Pool During Winter

The following is general advice only. Requirements for individual pools and pool systems may vary.

As the Australian summer fades and the cooler months roll in, it's tempting to forget about your backyard pool until the weather warms up again. But if you want crystal-clear water and minimal work when swimming season returns, maintaining your pool over winter is essential. Here’s how to keep your pool in top shape during the off-season.

❄️ 1. Don't Drain Your Pool

Many assume draining a pool in winter is a good idea — it’s not. Draining can cause structural damage due to pressure changes in the ground, and it leaves surfaces exposed to the elements. Keeping water in your pool, treated and circulating, is the safest and most cost-effective option.

🧪 2. Balance the Water Chemistry

Maintaining proper chemical levels during winter prevents algae growth, staining, and scaling. Every 2–4 weeks, test and adjust:

  • pH level: 7.2 – 7.6

  • Chlorine: 1 – 3 ppm

  • Alkalinity: 80 – 120 ppm

  • Calcium hardness: 200 – 400 ppm

  • Stabiliser (Cyanuric Acid): 30 – 50 ppm (for outdoor pools)

Use high-quality pool chemicals from WaterPro Pool and Spa to simplify your maintenance routine.

🧼 3. Clean Your Pool Regularly

Even in winter, debris can build up. Every couple of weeks:

  • Skim the surface

  • Vacuum the floor

  • Brush walls and steps

This prevents staining and reduces organic material that would otherwise demand more chemicals.

💧 4. Reduce Filter Run Time (But Don’t Stop It)

During colder months, your pool’s filtration system doesn’t need to run as long. Aim for:

  • 2–4 hours/day, depending on pool size and debris

Still, run it daily to keep water moving and prevent algae buildup.

🛡️ 5. Use a Pool Cover

A quality cover:

  • Prevents leaves and debris from entering

  • Reduces evaporation

  • Helps maintain chemical balance

  • Keeps the water warmer

Solar covers or winter mesh covers are both effective — choose one based on your climate and budget.

🔄 6. Shock and Algaecide Treatments

Before covering the pool for extended periods, consider:

  • Shocking: Super-chlorinate to kill off organics

  • Algaecide: A long-lasting product to inhibit winter algae

This extra step reduces issues when reopening in spring.

🧰 7. Maintain Your Equipment

Check pumps, filters, chlorinators, and timers. Winter is a good time to service or replace worn parts — before the summer rush. Empty and clean baskets and backwash your filter monthly.

☀️ Bonus Tip: Consider Winter Swimming!

In warmer parts of Australia or with a solar/heat pump, winter swimming is possible! Maintain normal chemical levels and ensure good filtration if your pool remains in use.

✅ Final Word

Winter pool maintenance in Australia doesn’t need to be a chore. With a small amount of regular attention, you'll save time, money, and frustration when the weather warms up.

Make sure to stock up on reliable, high-quality winter-ready chemicals from WaterPro Pool and Spa to keep your water clear, balanced, and beautiful — all year round.

If you have any questions or queries, please contact our skilled team of technicians at WaterPro Pool and Spa on 1300 44 7665 or contact us.