Oh nice, you bought the controller AND the reservior. Excellent. First what I would do is take the reservoir off the top of the controller. Sit it down on something the same height. This way you can actually access the controller.

Next lets say you normally fill 10 gallons in your system. Then fill the ten gallons all through the controller (slowly) and add the nutes there. Then fill the rez with plain water.

You can check your controller as you like and when the rez is empty, its time to change out the nutes.
herbie the love bud Reviewed by herbie the love bud on . Alright.. Just bought a controller now what???? :) Here's the deal... I have been doing the water farm grows the hard way by adding water to bring the levels back up to each farm individually. Now that I have a controller.. what should I put in it? Ph'd water to top off plants at all times or nutes? And I understand that I will not have to change out nutes as often right? Anyone who has experience with this please help me out since I am new to using a controller. Thanks in advance! Rating: 5