I started with the DWS, and made some mistakes along the way. I used a long tub asthe resivor. It was a rubbermade tote used to store the kids toys under their beds when they were younger. It was about 4 foot long and maybe 8 inches deep. It work well for being able to get a large number of plants in with room to grow. I used a piece of paneling I scrounged as the top board.
Mistakes with this.
1) moving a 4 foot tub of water to change it, not easy.
2) Paneling started to show damage in the first week or two from the areators throwing up water on to it.
3) hard to check or adjust levels.
4) had to paint it black to block out light, didn't work super.
What I found was at Wally World they have smaller 18x20x 8 black tubs. Easier to move, totally blacked out the light. can unclip the lid, pick up and set to the side for changing water, and testing.
I'm moving to these on the next grow cycle. I will have to build a bigger light stand to straddle three tubs, but depending on what you are growing, you can get between 12 and 20 2" baskets in the lid. Use a 1 7/8 hole saw in reverse to cut the holes in it.
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