SpaPure pH Up | Spa pH Increaser

• 1 x SpaPure pH Up (1 lb resealable container, granular)

• Raises low pH — brings acidic water back into the safe 7.2–7.6 range
• Protects your spa — prevents the corrosion and equipment damage acidic water causes
• Reduces irritation — balanced pH is gentler on skin and eyes
• Helps your sanitizer work — chlorine and bromine perform best at proper pH
• Soda-ash formula — sodium carbonate raises pH with only a mild effect on alkalinity
• Wide compatibility — works with chlorine, bromine, silver/mineral, and ozone systems

The active ingredient, sodium carbonate (soda ash), is a mild alkaline compound. When it dissolves, it neutralizes the hydrogen ions responsible for acidity — fewer hydrogen ions means a higher, healthier pH. Aim for a pH of 7.2–7.6, the range where water is non-corrosive, comfortable, and lets your sanitizer do its job.

It's worth knowing how this differs from an alkalinity increaser. An alkalinity increaser uses sodium bicarbonate, which raises alkalinity strongly; pH Up uses sodium carbonate, which targets pH and nudges alkalinity only slightly. That makes pH Up the right tool when your pH is low but your alkalinity is already in range.

Pro Tip: Add it in small steps and retest. Soda ash works fast and it's easy to overshoot into high-pH territory, which brings its own problems (scale, cloudy water, sluggish sanitizer). Dose conservatively, circulate, wait about 30 minutes, and retest before adding more — sneaking up on your target beats overshooting and having to walk it back with pH Down.

Never mix different products together in the same bottle or pail. Add this product directly to the spa water. Test spa water frequently and make adjustments as needed, aiming for a pH of 7.2–7.6.

1. Turn on the circulation system.
2. If pH is between 6.8 and 7.1, add 1 ounce (2 tablespoons) per 500 gallons directly to the spa water.
3. If pH is below 6.8, add 2 ounces (4 tablespoons) per 500 gallons.
4. Wait about 30 minutes, then retest. If pH is still below range, repeat the treatment.

Pro Tip: Dissolve, don't dump. With the pump running, broadcast the granules across the surface rather than pouring them in one spot — concentrated soda ash settling on an acrylic surface can cloud or mark it. Spreading it out lets it dissolve evenly and go to work without any risk to the shell.

• Brand: SpaPure
• Manufacturer: Haviland Consumer Products
• Part Number: C002579-CS20B6
• Product Type: pH increaser (balancer)
• Form: Granular
• Net Weight: 1 lb
• Active Ingredient: Sodium carbonate / soda ash (100%)
• Function: Raises pH into range; mild effect on total alkalinity
• Dosage (pH 6.8–7.1): 1 oz (2 tbsp) per 500 gallons
• Dosage (pH below 6.8): 2 oz (4 tbsp) per 500 gallons
• Target Level: pH 7.2–7.6
• Retest: Wait ~30 minutes, then retest and repeat if needed
• Compatible Sanitizers: Chlorine, bromine, silver/mineral, and ozone systems
• Application Note: Never mix with other products in the same container; add directly to spa water with the pump running
• Shipping: Standard ground; not classified as a hazardous material (eligible for mail return under standard policy)

SpaPure pH Up is compatible with chlorine, bromine, silver/mineral, and ozone systems, so it works in virtually any spa. As a balancer, it's part of the foundation you set before and alongside your sanitizer.

It's the counterpart to pH Down (which lowers pH when it climbs too high) and works hand in hand with an alkalinity increaser and SpaPure test strips. Balance pH and total alkalinity before adding sanitizing and shock products. Never mix pH Up with other chemicals in the same bottle or pail — always add it directly to the spa water.