Zodiac Winteriser Pool Pack: 1L Algaecide + 1L Phosphate Remover + 1L Natural Clarifier - 6 months protection – Pool Chemical

It’s best to add the Winteriser Pack at the beginning of the cooler months — typically between March and May — once the water temperature starts dropping below 18°C. This helps ensure algae is less active and allows your winterising chemicals to work effectively throughout the season.

Yes, but you can reduce the run time. We recommend running the pump for about 2–4 hours per day during winter to circulate the water and maintain proper chemical balance.

Closing your pool too early can be detrimental. If daytime temperatures are still above 18°C, winterising chemicals may deteriorate faster and fail to last through the season, leading to unbalanced water and increased chemical costs. Additionally, warm water encourages algae growth — especially if your pool is covered and filtration is reduced. For best results, wait until daytime temperatures consistently drop below 18°C before winterising your pool.

Yes. Even after winterising, your pool needs occasional upkeep. We recommend inspecting your equipment weekly and testing the water at least fortnightly to keep chemical levels balanced. This helps prevent algae blooms or equipment issues and makes reopening the pool much easier.

Absolutely. Salt cells should be cleaned every 3–4 months to prevent calcification and extend their lifespan. If you see white calcification building up in your cell, it's definitely time for a clean. Cleaning the filter before winter prevents oils and debris from hardening, which makes spring cleaning easier.

Yes. Once the products have fully dispersed — typically after a full filter cycle — it’s safe to swim.

Yes. The Zodiac Winteriser Pack is suitable for all pool surfaces (concrete, fibreglass, vinyl) and all filter types (sand, cartridge, glass media).

If algae is already present, treat the algae with a shock treatment first. Once the pool is clean and balanced, apply the Winteriser Pack for long-term seasonal protection.

Common mistakes include:

• Not shocking the pool before closing
• Failing to balance pH to 7.2–7.8
• Skipping algaecide
• Not vacuuming or removing leaves and debris
• Not cleaning the filter
• Guessing chemical levels instead of testing
• Ignoring phosphate levels (leaves can raise them)
• Failing to clean the salt cell
• Not securing the pool cover properly

Once closed, it’s important to continue basic maintenance such as visual inspections and occasional water testing.