Hot Tub Serum Turbo pH Up | Spa pH Increaser

• 1 x Hot Tub Serum Turbo pH Up (2 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
• Fast-acting granular — dissolves quickly and goes to work right away

The active ingredient, soda ash (sodium carbonate), 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.

Soda ash targets pH with only a mild effect on total alkalinity, which makes Turbo pH Up the right tool when your pH is low but your alkalinity is already in range. (If your alkalinity is also low, correct that first with an alkalinity increaser.)

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 a pH decreaser.

Never mix different products together in the same container. Add this product directly to the spa water with the circulation running. Test spa water frequently and adjust as needed, aiming for a pH of 7.2–7.6. Always follow the container label for exact dosing.

1. Test the water to confirm pH is below range.
2. Turn on the circulation system.
3. Broadcast the recommended amount of Turbo pH Up evenly over the surface of the water (see the label for the dose based on your spa's gallons and current pH).
4. Wait about 30 minutes, then retest. If pH is still below range, repeat the treatment until it sits between 7.2 and 7.6.

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: Hot Tub Serum (Serum Watercare)
• Product Type: pH increaser (balancer)
• Form: Granular
• Net Size: 2 lb
• Part Number: TU-012
• Active Ingredient: Soda ash / sodium carbonate
• Function: Raises pH into range; mild effect on total alkalinity
• Target Level: pH 7.2–7.6
• Dosage: Per container label, based on spa gallons and current pH
• Retest: Wait ~30 minutes, then retest and repeat if needed
• Compatible Sanitizers: Chlorine, bromine, salt, mineral, and ozone systems
• Application Note: Never mix with other products in the same container; broadcast over the water with the pump running
• Shipping: Standard ground; not classified as a hazardous material

Hot Tub Serum Turbo pH Up is compatible with all sanitizer systems — chlorine, bromine, salt, mineral, and ozone. As a balancer, it's part of the foundation you set before and alongside your sanitizer.

It's the counterpart to a pH decreaser (Turbo pH Down) for when pH climbs too high, and works hand in hand with an alkalinity increaser and a reliable test kit or strips. Balance pH and total alkalinity before adding sanitizing and shock products. Never mix Turbo pH Up with other chemicals in the same container — always add it directly to the spa water.