HAPPY NEW YEAR S-B...........And thanks for all the threads this year bro..................i am going to try DWC next year as my skills can handle it now. Soil is a bit slow to respond, thing move quicker in DWC...........you just have to react faster, once you know how to react !!............watching you has helped a lot though..............i am going to connect 2 DWC vessels and pump circulate the water round the two vessels. the res vessel will be outside the cab. So i can test & adjust, pump drain with divert valve, or top up res. When they get big and start scoffing 4-5ltra per day, im hoping the water level wont go down as fast as effectively they will be running on 40ltrs from both vessels !!.................HNY S_B......hope you had the Autoblueberry xsmas u wanted ..........AB.........see ya nxt yr..