Spa Alka Boost - Alkalinity Increaser 500G

Product Description

PoolFlow Spa Alka Boost is a premium alkalinity increaser designed to raise total alkalinity and stabilize pH levels in spa and hot tub water. Formulated with 100% Sodium Bicarbonate, it helps prevent rapid pH fluctuations, protects spa equipment from corrosion and scaling, and improves the effectiveness of sanitizers for cleaner, clearer water. Suitable for all spa types and sanitizing systems, this fast-dissolving, fully soluble formula leaves no residue and helps maintain comfortable bathing conditions. 

Technical Information

• Product Name: Spa Alka Boost – Alkalinity Increaser 500G
• Brand: PoolFlow
• Active Ingredient: 100% Sodium Bicarbonate 
• Purpose: Raises total alkalinity and stabilizes pH levels
• Suitable For: All spa and pool types; compatible with all sanitizing systems 
• Recommended Total Alkalinity Range: 125–150 ppm
• Benefits:
  • Stabilizes pH
  • Protects equipment from corrosion and scaling
  • Improves sanitizer performance
  • Fast dissolving and residue-free
  • Helps maintain comfortable water conditions 
• Country of Manufacture: Australia
• Pack Size: 500G

Benefits

Why Alka Boost Is the Foundation of Balanced Water

Stabilises Your pH. Total alkalinity acts as a buffer, holding your pH steady and preventing the swings that damage equipment and throw your water out of balance. Get this right and everything else gets easier.

Protects Your Equipment. Low alkalinity corrodes spa equipment, including heating elements, and etches surfaces. Alka Boost helps protect your investment by keeping alkalinity in the right range.

Dissolves Fast, No Residue. A 100% soluble formula that acts quickly and won’t cloud your water. Just dose and go.

Gets More From Your Sanitiser. Properly balanced alkalinity makes your sanitiser more effective, so you get cleaner, clearer water with less chemical overall.

Comfortable for Bathers. Balanced alkalinity keeps pH in the comfortable range, helping prevent the eye and skin irritation that comes with poorly balanced water.

Australian Made. Manufactured here in Australia to the same pharmaceutical-grade standards as the full PoolFlow range.

Direction for use: 

Recommended Range: Maintain total alkalinity between 125-150 ppm for optimal spa water balance.
Application Rate:
Use the chart below to determine correct dosage (see next worksheet)

Application Method:

1. Test water to determine current total alkalinity level
2. Calculate required amount of ALKA BOOST needed
3. Mix measured product in a clean bucket with water
4. Distribute solution evenly around spa with pump running
5. Run filtration system for at least 1 hour to ensure complete distribution
6. Retest water after 4 hours and adjust if necessary

IMPORTANT: If pH has been 6.8 or lower for an extended period and corrosion of metal fixtures is apparent, seek technical advice before adding this product as metal staining may occur.