LEISURE TIME Spa Down pH Reducer for Hot Tubs 2.5 lb — Fast-Dissolving Sodium Bisulfate, Lowers pH & Alkalinity

LEISURE TIME Spa Down is a fast-dissolving sodium bisulfate granular formula that safely lowers pH and total alkalinity to keep spa water clear and sanitizer-active.

Keeping spa water balanced is essential for comfort, equipment longevity, and effective sanitation. LEISURE TIME Spa Down (22338A) is formulated to bring high pH and alkalinity back into range without interfering with bromine, chlorine, or biguanide sanitizers. Packaged in a convenient 2.5 lb container, this granular pH reducer is simple to use and disperses quickly so you can return to enjoying your spa sooner.

How does Spa Down restore clear water when pH is high?

Spa Down supplies sodium bisulfate, an acidifying agent that neutralizes excess alkaline ions in the water. By lowering pH and total alkalinity, it prevents scale formation and the cloudy water that often accompanies high pH. Restoring pH balance also makes sanitizers more effective, helping reduce bacteria and organic buildup.

• Fast-dissolving granular formula for quick action
• Targets both pH and total alkalinity
• Reduces scale and cloudiness to improve clarity

Will Spa Down work with my sanitizer—bromine, chlorine, or biguanide?

Yes. Spa Down is fully compatible with common spa sanitizers including bromine, chlorine, and biguanide systems. It lowers pH without introducing stabilizers or other additives that can interfere with sanitizer chemistry. That compatibility allows you to correct water balance without changing your sanitizer routine.

• Safe to use with bromine, chlorine, and biguanide
• No impact on sanitizer selection or dosing schedules
• Helps sanitizer perform at intended strength by maintaining correct pH

How do I use this 2.5 lb Spa Down product safely and effectively?

Measure pH and total alkalinity first, then add Spa Down in small increments while the pump is running. Pour the granular product directly into the spa water away from the jet stream and allow circulation for at least 15–30 minutes before retesting. Repeat in small doses until you reach the recommended ranges to avoid overshooting the target pH.

• Test water before and after treatment
• Pour granules directly into spa water with pump running
• Retest after circulation and repeat as needed in small doses

What are the product features and active ingredients?

Spa Down is a fast-dissolving granular pH reducer whose active ingredient is sodium bisulfate. It is designed specifically for spas and hot tubs, helping to prevent equipment damage from scale and improving overall water quality. The 2.5 lb size is convenient for routine maintenance and periodic adjustments.

• Active ingredient: sodium bisulfate
• Form: granular, fast-dissolving
• Size: 2.5 lb container for regular use

Who is this for? LEISURE TIME Spa Down is ideal for spa and hot tub owners who want a reliable, easy-to-use pH reducer that works with any sanitizer system. If you experience cloudy water, scale buildup, or reduced sanitizer effectiveness, this product offers a straightforward way to restore balance. It's also suited for pool service professionals and property managers who need a compact, fast-acting solution for routine spa maintenance.