In recirculating hydroponic systems:
- To reset and refresh before changing nutrients (inc. before FinalPart): Add 1.5 to 3 ml / L of FlashClean to your existing nutrient solution and circulate for 24 hours before draining and replacing with fresh nutrient solution. Use the lower dosage for young or fragile plants, and the higher dosage for established plants / close to harvest.
- After nutrient burn or lock-out: Drain old nutrient solution, add 1.5 to 3 ml / L of FlashClean to pH adjusted water (you don’t need to use a full tank, just enough to circulate freely and run the system). Circulate for 24 hours before draining and adding new, fresh nutrient solution. Use the lower dosage for young or fragile plants, and the higher dosage for established plants.
- As a final rinse (after FinalPart): Drain old nutrient solution, add 1.5 to 3 ml / L of FlashClean to pH adjusted water (you don’t need to use a full tank, just enough to circulate freely and run the system). Circulate for for the last two days before harvest to increase sugar levels in your crop instead of losing aroma and medicinal content with a long water flush..
In potting soil & soilless mixes inc. Coco Coir:
- To reset and refresh before changing nutrients (inc. before FinalPart), and after nutrient burn or lock-out: Every fifteen days (or when needed after lock out etc): fill a watering can with fresh pH adjusted water and add 1.5 to 3 ml / L of FlashClean. Drench until there is runoff from the bottom of the pot. Resume your regular fertiliser schedule with the next watering. Use the lower dosage for young or fragile plants, and the higher dosage for established plants.
- As a final rinse / after FinalPart: Use 3 ml / L of FlashClean instead of nutrients during the last two days before harvest to increase the sugars level in your crop instead of losing aroma and medicinal content with a long water flush.
NB: FlashClean can be used at any stage of growth or flowering but do not use FlashClean more than once every two weeks.











