Description
Rijo Anti-Alg is a powerful liquid algaecide specially developed to prevent and combat algae growth in swimming pools, spas, and hot tubs. This product acts preventively against various types of algae (green, brown, black) and helps to keep the water crystal clear, without negatively affecting water quality or the filter system.
The liquid formula is easy to dose, dissolves instantly in water, and is compatible with chlorine, bromine, and saltwater systems. The product can be used for start-up, regular maintenance, and as an intensive treatment for sudden algae growth.
🧾 Usage and Dosage
| Application |
Dosage |
| Initial treatment for green water |
approx. 30 ml per 1,000 liters |
| Maintenance (preventive) |
approx. 8 ml per 1,000 liters weekly |
| After heavy rainfall |
8 ml per 1,000 liters extra |
| Winter treatment |
approx. 50 ml per 1,000 liters |
Instructions for use
-
Check the pH value of the water (target value: 7.2 – 7.6).
-
Start with a shock treatment with chlorine in case of cloudy or green water.
-
Add the correct amount of Anti-Alg, preferably into the skimmer or directly into circulating water.
-
Let the pump run for at least 24 hours.
-
Brush smooth surfaces if necessary and clean filters.
-
Repeat preventive dosage weekly.
✅ Safety Instructions
-
Always add product to water, never the other way around.
-
Wear gloves and safety glasses when dosing.
-
Avoid contact with skin, eyes, and clothing.
-
Keep out of reach of children.
-
Do not mix with other chemicals.
Commercial USPs for Webshop or Flyer
-
Ready to use: No complicated steps, just add it.
-
Highly effective against green algae – keeps water crystal clear.
-
Prevents expensive repairs due to buildup in pipes and filters.
-
Also suitable for spa and hot tub: one product for all your water.
💡 Extra tips for clear water
-
Combine Anti-Alg with shock chlorination for maximum effectiveness.
-
Check pH and chlorine levels weekly.
-
Use a flocculant to remove fine floating particles.
-
Brush the walls and floor regularly to break up biofilm.