This natural mixture contains beneficial microorganisms (not less than 106 cfu/g), micro-elements, and plant extracts. It limits the growth of algae and reduces the amount of organic matter, thereby keeping stored rainwater and recycled water fresh. It is harmless to people and the environment – does not contain chlorine, aluminum sulphate, or other chemicals. It improves the quality of rainwater and recycled water, and after treatment the water can be used to safely water ornamental plants and lawns. Completely safe, even if overdosed.

BioRain Mixture:

  1. Prevents unpleasant odors
  2. Reduces algae and inhibits algae growth
  3. Reduces organic sediments in rainwater reservoirs
  4. Neutralizes harmful soap residues in gray water
  5. 500 ml. – enough for 2,000 liters of water
  6. 5 liters – enough for 20,000 liters of water


Application method:

Pour the appropriate dose of the mixture directly into the reservoir (eg. garden, retention, or underground reservoirs). In the event of heavy rainfall, the preparation should be applied immediately after rainfall. Shake well before use.



Rainwater: 25 ml per 100 liters per week.

Recycled water: 50 ml per 100 liters per week.


Warning! Keep away from children. Store above freezing temperatures in a tightly closed container in a cool shaded place.


BioRain – brochure