Pool pH Increaser 1.75 kg
100% natural pH increaser in a 1.75 kg format for small pools, hydromassage tubs, and spas. Raises the pH to its ideal level (7.2–7.6) without chemicals harmful to health. 💧
🌿 100% natural: safe for babies, sensitive skin, and pregnant women.
🛁 Comfortable water: no more itching or irritation caused by low pH.
🔧 Protects the equipment: reduces corrosion on fittings and metal parts.
♻️ Reusable, airtight container with measuring scoop included.
Frequently bought together

Pool maintenance · 1.75 kg
Natural pH increaser for pools in a 1.75 kg size
Low pH makes the water uncomfortable for the skin and eyes and gradually attacks the pool's metal components. The Puerto Verde pH increaser returns it to its optimal range of 7.2 to 7.6 with a 100% natural formula, completely free of harmful chemical ingredients.
It comes in a granulated format, in a reusable container with a hermetic seal. The 1.75 kg size is ideal for small or above-ground pools, hot tubs, and spas.
- 🌿 100% natural
- ✓ No harmful chemicals
- 🎯 pH 7.2-7.6
- 👶 Safe for babies
- 🥄 Dosing scoop
Is your pool's pH not rising? Check the alkalinity
If you add pH increaser and the value barely moves, or rises and drops again after a few days, the problem is not the product: it is the Total Alkalinity (TAC). When it is below 100 ppm, the water cannot maintain the pH. Correct it first to 100-150 ppm and you will see how the pH stabilizes.
Correct the alkalinity
With the equivalent 1.75 kg size, you bring the TAC to 100-150 ppm and the pH is maintained.
Alkalinity increaser 1.75 kgWant to understand it thoroughly? Read the guide why the pH of my pool does not rise even though I use pH increaser.
Why pH matters
Correct pH, water you can enjoy
A pH between 7.2 and 7.6 protects swimmers from discomfort, itching, and skin irritation, reduces the water's corrosive power, and allows chlorine to work more effectively.
No itching
Avoids discomfort to the skin and eyes.
No corrosion
Protects fixtures and metals.
Effective chlorine
Disinfection works better.
Pleasant water
A more comfortable swim.
Safe for everyone
A 100% natural pH increaser
The Puerto Verde pH increaser is a 100% natural pH increaser, completely free of harmful chemical ingredients. It is safe for:
- 👶 Children and babies
- 🌸 Sensitive skin
- 🤧 Allergies
- 🛡️ Chemical intolerances
- 🤰 Pregnancy and breastfeeding
Universal formula
For pools, hot tubs, and spas
It works in outdoor and heated pools, hot tubs, and spa circuits, with water at any temperature and with any cleaning system.
- ☀️ Outdoors
- 🌡️ Heated
- 🫧 Hot tubs
- 🧖 Spas
Dosage
How much pH increaser do you need?
First measure the pH: ideally it should be between 7.2 and 7.6. Then, apply the reference dose:
Pools
300 g (10 level scoops) per 50 m³ raises the pH by 0.1.
Spas
15 g (½ scoop) per 1 m³ raises the pH by 0.2.
To raise the pH by 0.1 in small pools:
Directions for use
How to apply the pH increaser
-
Analyze the water
Check the pH and alkalinity. With TAC below 100 ppm, correct it first.
🧪 pH and TAC -
Calculate
2 scoops for every 10 m³ to raise by 0.1; in spas, half a scoop per m³ to raise by 0.2.
🥄 2 scoops / 10 m³ -
Dissolve
Prepare the dose in a bucket with about 10 liters of water.
🪣 10 L -
Distribute
Pour the solution around the entire edge, preferably at dusk and with no one in the water.
🌙 No swimmers -
Filter
Run the filter for at least 4 hours. Then, measure again.
⏱️ ≥ 4 h
Natural range for pools
Complete the maintenance
Combine the pH increaser with the rest of Puerto Verde's natural pool products:
Practical guide
Why doesn't the pH rise even though you add increaser? We explain it step by step.
Sizes
pH increaser in all sizes
Technical sheet
The Puerto Verde pH increaser is also available in our official Amazon store.
Buy pH Increaser on Amazon