Flush

Flushing plants towards the end of the flowering stage is essential for bringing colour and character out of your flowers. In DWC flushing is incredibly simple and effective because you do not have to deal with soil runoff. There remains an ongoing debate concerning whether or not flushing helps produce a smooth burning flower. Some argue that flushing does not actually remove mineral deposits. There is no arguing that flushing brings beautiful purple colours out of strains that have the potential- so I always flush when growing for flower.

When growing for hash rosin I don’t bother with flushing the plants as I have not found it to make a difference in the final product.

When to Flush

• 2 to 7 days before harvest
• Trichomes are predominantly cloudy
• Amber trichomes start appearing

Flushing method:

• Use sub pump or manually drain nutrient solution from reservoir
• Refill tank with tap water and measure EC to determine baseline
• After 4-12 hours measure EC again to see how much it has gone up
• Drain water as before
• Continue this process until the EC stops rising 50-100ppm above your baseline