CANNA FLUSH is a product to clean substrates and plants from any excess nutrients. This is necessary, because excess nutrients can have a bad influence your next growth cycle. They could lead to over-fertilisation or malnutrition, for example.Why should you use CANNA FLUSH? When used just before harvest it makes sure the plant gets rid of all excess, which will lead to a clean and tasteful harvest. CANNA FLUSH effectively cleans the substrate without killing any useful bacteria or beneficial fungi, as can be the case when you use reverse osmosis or de-mineralised water. It can be used on all substrates. CANNA FLUSH is recyclable.Flushing excess nutrients from drainable substratesSoil or Soil-less mixes: Dilute 20 ml concentrate per 10 litre of water (1:500) until you have drain Water plants once with plain tap water according to normal watering frequency until you have drain Then resume normal feeding scheduleHydroponics (open systems): Administer the diluted FLUSH (40ml per 10 litre water, which is 1:250) the last feed of the day until there is 10-20% drain Water plants once with plain tap water until you have drain Start administering according to normal feeding schedule (with 10-20% drain) the following dayBefore harvest (annual crops only) Start one to two weeks before harvest and apply at above rates and in the above fashion once a week. Continue through harvest on a normal feeding schedule.Re-using inert substratesCANNA FLUSH is ideal for cleaning inert substrates (like clay pebbles). Add diluted CANNA FLUSH (40ml/10 litre tap water). Soak for 24 hours then rinse with same amount of tap water. Repeat if necessary.Storage, health & safety and other directions Shake bottle well before use Store closed in a dark and frost-proof place Keep out of reach of childrenWarranty / GuaranteeCANNA only works with high graded ingredients, which are immediately and completely available for the plant. The bottle is made of polyethylene (PVC and cadmium free), a recyclable plastic.