Hey GetThisOneOrDie,

I used the basic idea and materials shown in the HT article, though I sized mine based on what lights I had available.

In my veg system, I have an 8 tube, 4\' T-5 HO fixture. So I have 2 rows of 6 plants on 7\" centers. On this system, there are 8 sprayers per side, also on 7\" centers, which puts them on either side of each plant site.

On the flower systems, I have about a 4\' x 9\' useable light footprint. For the flower systems, I put the plant sites on 15\" centers to allow plenty of room for stetch.

The channels are built with 5\" vinyl fence posts, and the plumbing for the sprayers is 1/2\". All systems use a 396 gph submersible pump and ez clone 360 sprayers. All in all, pretty simple..

With the chiller, you should be able to build 1 system for less than a $100..

Good luck!

Peace,

Farmer Rich