Alkalinity Up

Pool Master Alkalinity Up is specially formulated to increase and maintain the total alkalinity of your pool water. Balanced alkalinity helps stabilise pH, protects pool surfaces, and improves the effectiveness of chlorine. Ideal for all pool types, this premium-grade sodium bicarbonate prevents extreme pH swings and maintains consistent water quality.

• Raises and stabilises total alkalinity
• Prevents sudden pH changes (pH buffering)
• Helps maintain clear, comfortable pool water
• Safe for all pool and spa surfaces
• Easy to use, dissolves quickly with minimal residue
• Trusted NZ pool chemical brand

Enjoy peace of mind and healthy swimming with balanced pool water. For best results, always follow dosing instructions on the label.

We accept returns on all unopened chemical products within 14 days of delivery. For returns, exchanges, or product concerns, please contact our team with your order details.

Made to order and shipped NZ-wide
Most products are processed within 1–3 business days, and made-to-order items usually dispatch within 5–10 business days. Rural deliveries may take slightly longer.

Courier & Freight Services
All orders are shipped through Aramex New Zealand (Platinum Tier) or approved freight partners.
Delivery timeframes:

• North Island: Next working day target
• South Island: 2–3 working days target
• Rural Delivery (RD): Add 1–3 days

Shipping costs are automatically calculated at checkout based on your selected Aramex Zone (Z1–Z5).
Freight for oversize or heavy items (over 25 kg / 1.2 m) is confirmed by our logistics team before dispatch.

Dangerous Goods (DG)
Certain products (e.g. pool chemicals, acids, oxidisers, flammable products) are classified as Dangerous Goods and incur a $5.00 + GST handling surcharge per parcel, applied automatically at checkout.
DG items may require additional processing time or restricted service areas under Aramex NZ policy.

Freight Access Requirements
Please ensure safe, unobstructed access for delivery.
Delivery is to curbside or the nearest accessible point and does not include installation or site placement.

Tracking & Support
Tracking details will be emailed once your order has been dispatched.
For assistance or urgent delivery enquiries, contact info@aquatech.co.nz or call 09 636 9921.

For detailed rates and zone maps, see the Reference Documents section on our Shipping, Returns & Warranty Policy page.