pH & Alkalinity Reducer - Sodium Bisulphate

This granular sodium bisulphate is a dual-purpose stock line for reducing high pH and total alkalinity in pools and spas. Zagosa Spa & Pool packs are available in 1kg, 2.5kg, 5kg, 7kg, 10kg, 14kg, 20kg and 25kg, giving dealers useful options for retail shelves and professional service customers. As a dry acid format, it is easy to measure and store. Each pack arrives retail-ready with compliant labelling, helping resellers, installers and maintenance firms source a familiar balancing chemical in sizes suited to their turnover.

• Sodium bisulphate reduces both the measured pH and total alkalinity.
• Approximately 16 g per 1000 L produces a pH reduction of 0.2 units.
• Lowering excessive pH supports sanitiser performance and reduces scale formation.
• The granular dry format provides an alternative to handling liquid acid.

Available formats

Available in 1kg, 2.5kg, 5kg, 7kg, 10kg, 14kg, 20kg and 25kg tubs.

• 1kg
• 2.5kg
• 5kg
• 7kg
• 10kg
• 14kg
• 20kg
• 25kg

What it does

• Sodium bisulphate reduces both the measured pH and total alkalinity.
• Approximately 16 g per 1000 L produces a pH reduction of 0.2 units.
• Lowering excessive pH supports sanitiser performance and reduces scale formation.
• The granular dry format provides an alternative to handling liquid acid.

Additional information

• Active ingredient: Sodium bisulphate (NaHSO4), at >= 93%
• Physical form: Loose-flowing granular solid
• Appearance: Small white crystalline granules
• Storage: Retain in a sealed, dry container below 30 C, apart from chlorine and bromine donors.
• Shelf life: 36 months while unopened; 24 months following opening.

Balancer selection by test reading

Pairs each out-of-range reading with the Zagosa Spa & Pool balancer that corrects it. The adjustment order is total alkalinity, then pH, then calcium hardness.