SpaChoice pH Decreaser for Hot Tub 1.5 lb — Lowers High pH, USA-Made, Chlorine/Bromine Compatible

SpaChoice 1.5-Pounds Premium pH Decreaser quickly lowers high spa water pH to help restore balanced hot tub water chemistry.

High pH in spa water causes cloudy water, scale buildup and less effective sanitizers. SpaChoice Premium pH Decreaser is a concentrated product formulated to reduce pH and help bring total alkalinity into the recommended range for hot tubs and spas. Made in the USA and compatible with chlorine, bromine and biguanide systems, it’s intended for use when pH rises above 7.8.

How quickly will this bring my spa pH back into range?

Response time depends on water volume, current pH and alkalinity. The product is designed for gradual, controllable adjustments — you premix small doses and retest every 30 minutes to avoid overshooting the target range.

• Premix: dilute 1 ounce in a plastic pail of water before adding.
• Circulate: run the blower or filtration system while adding diluted solution.
• Retest: wait 30 minutes between additions and retest pH and alkalinity.
• Repeat small increments until pH 7.2–7.8 and alkalinity 80–140 ppm are reached.

Is this compatible with my sanitizer — chlorine, bromine, or biguanide?

Yes. SpaChoice pH Decreaser is formulated to be compatible with common spa sanitizers including chlorine, bromine and biguanide. Adjusting pH with this product helps sanitizers work more effectively without reacting adversely when used as directed.

• Safe to use with chlorine, bromine and biguanide systems.
• Helps restore sanitizer efficiency by returning pH to the ideal range.
• Use incremental dosing to maintain sanitizer balance and avoid treatment shocks.

What is the correct dosing and step-by-step procedure?

Follow a careful, stepwise approach: premix a small amount, add while running circulation, and retest. This allows precise control of pH and prevents large swings that could affect water comfort or equipment.

• Turn on the air blower or filtration system for circulation.
• Premix 1 ounce of product with water in a plastic pail before adding to the spa.
• Add the diluted solution to the spa, wait 30 minutes, then retest pH and alkalinity.
• Repeat these steps until pH is 7.2–7.8 and total alkalinity is 80–140 ppm.

How should I store and handle the pH decreaser safely?

Keep the container closed and stored in a cool, dry place away from children and pets. Use plastic pails for premixing, avoid metal containers, and follow label instructions to prevent spills and protect equipment.

• Store in original container in a well-ventilated, dry area out of direct sunlight.
• Use protective gloves and eye protection when handling concentrated product.
• Avoid metal mixing vessels; use plastic pails for dilution.
• Keep out of reach of children and pets; follow local disposal guidelines for chemical containers.

Who is this for: Spa owners and maintenance professionals who need a reliable, American-made solution to lower high spa pH and fine-tune total alkalinity. It’s especially useful when routine testing shows pH consistently above 7.8 and when you want a product compatible with chlorine, bromine or biguanide sanitizers. Ideal for regular maintenance routines where measured, incremental adjustments prevent scale, cloudy water and reduced sanitizer performance.