What are you using, a wick system? I had an Emily's garden way back in the day, like 1996! It worked wonders compared to the soil I was using previously. Very easy to maintain and use.
i am actually just using a glade plastic box it holds 2 1/2 gallons of water and i also have some air stones in their i just put the pots inside the res and the soak in their 24/7 and it works fine!
basically the same thing except you put about 2" of stones in the bottom of the pale and a wick running from the water to the rockwool. I was really impressed on the ease to use and the price of the unit. The roots eventually find their way down and the plants just explode.