I didn't manage to flush my res yesterday as I had other duties in the garden to attend to. I did however check the pH and EC levels giving 6.1/1.2

This morning I went in before lights out and scrubbed the system and drained the res. I replenished with pH 5.6 water without any additives and left the system running. I will do a second drain and replenish shortly then apply a full mix of all addatives to EC1.2-1.4.

I have chronic signs of over fert again due to the EC2.2 occuring for a second time... I will take some pix shortly and get them posted.
home.grower Reviewed by home.grower on . Diary:31/05/07: Flood & Drain 1st Try Greetings & Thank You For Visiting This Thread 31/05/07 marked the day that a flood & drain system with a sum of 32 x ''20-day-old'' Dunk (G13) and AK47 clones arrive in the flowering room. The flood & drain system consists of 1* 60L+ reservoir and 2* trays that are seated in an NFT fashion. There are 32 net pots, 16 on each tray. Each net pot is filled with Washed clay medium. On each tray there is an air line hose attached to a pump. These hoses deliver oxygen to the water which Rating: 5