Royal Pool & Spa pH Minus 14% - 25 kg
Liquid concentrate with 14% sulphuric acid for lowering and stabilising the pH of water in pools and hot tubs. 25 kg HDPE canister for professional use.
Bulk supply for automatic pH control
A liquid product based on 14% sulphuric acid for automatically lowering and stabilising water pH. The large 25 kg pack is designed for pools, wellness facilities and professional operations with regular consumption.
Stable pH even under heavy load
The automatic system continuously monitors pH and doses only the required amount of product. This helps maintain stable water quality without manually adding individual doses.
Lowers high pH
Helps return high pH to the recommended operating range.
Supports disinfection
Correct pH improves the conditions for effective chlorine and chlorine-free disinfection.
Reduces deposits
Balanced pH helps reduce cloudiness, limescale and mineral deposits.
Reduces operational demands
The large pack reduces replacement frequency and provides a practical supply for regular operation.
Automatically according to the pH probe
Consumption depends on water volume, initial pH, alkalinity, operating intensity and automatic-system settings.
Set the value according to the type of operation and the requirements of the disinfection system used.
The dosing pump adds the product according to the current value measured by the probe.
Stable alkalinity reduces pH fluctuations and excessive consumption of the corrective product.
Connection to an automatic system
Have the dosing equipment installed and set up by a suitably qualified person.
Check the alkalinity
Before starting control, set water alkalinity to 80–120 ppm.
Check the pH and probe
Compare the probe reading with an independent measurement and calibrate the probe if necessary.
Connect the suction line
Use a suitable acid-resistant suction assembly. Keep the canister in a safe spill-containment tray.
Set the controller
Set the target value, maximum daily dose and dosing-equipment safety limits.
Dose into the circulation system
Inject the product only into flowing water at the designated point in the equipment circuit.
Monitor operation
Regularly check pH, consumption, hoses, connections, the injection valve and the condition of the spill-containment tray.
What does the measured pH mean?
| pH value | Water condition | Possible risk | Recommended action |
|---|---|---|---|
| Below 6.5 | Water too acidic | Corrosion and equipment damage | Stop pH Minus and use pH Plus |
| 6,8–7,2 | Ideal range | Chemicals work optimally | Maintain with automatic control |
| Above 7.6 | High pH | Cloudiness, deposits and reduced disinfection effectiveness | Check control and dosing |
| Above 8.0 | Significantly high pH | Limescale and reduced chemical effectiveness | Lower in a controlled, gradual manner |
For facilities with regular consumption
Suitable uses
- Larger private pools
- Hotel and public pools
- Wellness and spa facilities
- Hot tubs and swim spas
- Indoor and outdoor pools
- Facilities with automatic pH control
Compatibility
- Chlorine disinfection systems
- Chlorine-free QAC systems
- Active oxygen systems
- Fresh and salt water
- Sand and cartridge filtration
- Dosing pumps designed for acids
Product specifications
| Product name | ROYAL POOL & SPA pH MINUS 14% |
| Category | Liquid product for lowering pH |
| Variant | 25 kg |
| Packaging | Professional HDPE canister |
| Product code | RP8250 |
| Active ingredient | Sulphuric acid 14% |
| CAS | 7664-93-9 |
| Target pH | 6,8–7,2 |
| Optimum alkalinity | 80–120 ppm |
| Application method | Automatic dosing system |
| Storage temperature | +5 to +30 °C |
| Country of manufacture | Czech Republic |
| Manufacturer | Royal Pure s.r.o., Výpravní 751/20, 619 00 Brno |
DANGER
- Contains sulphuric acid. The product may cause severe skin burns and serious eye damage.
- Wear protective gloves, protective clothing, safety glasses and a face shield.
- Avoid contact with skin and eyes. Do not inhale aerosol.
- If in eyes, rinse cautiously with water for several minutes and call a doctor immediately.
- Never mix with hypochlorite, chlorine, alkalis or other chemical products.
- The pH Minus dosing point must be separate from the disinfectant injection point.
- Store the canister in a suitable chemical-resistant spill-containment tray.
- Store locked up, in the original container and out of reach of children.
- Protect from frost, high temperatures and direct sunlight.
- Always read the label and safety data sheet for the specific package before use.
| Category: | pH adjustment |
|---|---|
| EAN: | 8594233820136 |
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| Manufacturing company : | Royal Pure s.r.o. |
|---|---|
| Address : | Výpravní 751/20, 619 00 Brno, Česká republika |
| E-mail : | info@royal-pure.cz |
