Chow_13answered grow question 2 years ago Looks like it would be a pain in the ass, Having your reservoir in the center of your plants would be a pain to fill up when they get big. I see no way to check water levels. The only way to check the EC is to either get into the reservoir or use the valve and "Take" a sample.
Personally I like to have a reservoir outside the tent to keep the water cooler, Ease of checking the solution/water level without having to open the tent during lights on( photoperiod plants )
I would say your better off making your own. Uniseals are the hardest part to find.