Bio-Bloc - Water Treatment Biocide


Long lasting broad-spectrum biocide, highly effective, controls Legionella bacteria, controls algae, bacteria, fungi and slime.



Bio-Bloc is a highly effective, long lasting, broad-spectrum liquid biocide formulated for the control of microorganisms including Legoinella in open and closed recirculating systems. It is effective in stagnant water periods and may be added continuously or in a kill dose. Bio-Bloc may produce low levels of foam due to the formulation including a bio-penetrant. Bio-Bloc may be used in conjunction with other HydroBalance products.


Directions for Use

Initial Dose: 1L of Bio-Bloc per 1000L water Maintenance Dose: 200mls of Bio-Bloc per 1000L water.         Consult a HydroChem Representative for specific recommendations for your application.


Pack Size

5 Litres


Product Tips

Water treatment of small cooling tower systems should include a secondary biocide and inhibitor program. The use of Bio-Sub and Rust-Bloc is recommended. Refer to product bulletin instructions.


Safety Information

Corrosive. Avoid contact with skin and eyes. Wear protective eye wear and gloves when mixing or using. First Aid: For advice contact the Poisons Information Centre. Phone 131126 (Australia) or a doctor at once. If swallowed do NOT induce vomiting. If in eyes hold eyelids apart and flush the eye continuously with water until advised to stop by Poisons information centre or doctor, or for at least 15 minutes. If contact with skin or hair occurs, remove contaminated clothing and flush skin or hair with running water. Refer to the SDS for further information.