Here is my new and improved set up. I built a box 6'x4'x2' using a shelving unit i got at home depot. I had spare boards so I decided to enclose it, make a couple vent holes and put some solid wood doors on. lined it with that Mylar heavy duty shit running a 400w HPS for my flowering stage atm. My Rez I'm using is 50 gal. Rubbermaid container I picked up @ walmart (btw fuck that place)and filled it with 30 gal. of water. Hydrotone medium, and I'm using 3 part Advanced nutrients Grow, Micro, Bloom. I almost lost everything when i did my only water change at the end of my 4th week. I reluctantly followed AN's (advance nutrients) feeding schedule for hydroponic fill and drain system. DWC is a totally different system having your roots in your water solution, so it is very temperamental. One thing I did to cure my water temp problems from last time, was to completely insulate the container with 4 cans of spray foam insulator (on the outside ofc). Once cured, I wrapped it in 3" painters tape(don't laugh, it's all i had)to hold the foam in place some once I added the water the container would expand from the water pressure on the sides of it, so it holds it in place nicely. On hot days it gets to the mid 90's in the grow box, but the water temp. remains chill and if it warms up, I have 2 liter bottles of water frozen to lower water temps since they should be between 65-70 or in that range.
This time last grow my plants were 1/2 the size, so far so good
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OG Kushx5 400W HPS 2nd DWC attempt
![Image](http://i967.photobucket.com/albums/ae153/SheRShinGSheR/Shaye5-26-10011.jpg)