Just got home and slapped it together...Still need to cut the riser, cut some filters to prevent the tubes from clogging, add some wood underneath to prevent bowing from repeated flooding, add air pump and airstones, and maybe get a bigger reservoir...the 18 gallon tote there will be the auto top-off freshwater reservoir, since I bought a float valve today too...Everything, including the pump, was about 60 bucks...And thats COMPLETE! Tray, PVC stand,water pump, tubing, bulkheads...I estimate about 10-15 bucks for the air pump and airstone, but these are all things I would have needed anyway if I had bought a $75 ebb n flow tray...
Definately a good deal, now I just gotta decide on a medium, get some pots, and I'm good to grow! Currently growing in RDWC in 5 gallon buckets.
[video=youtube;j8jOnrR0mSM]http://www.youtube.com/watch?v=j8jOnrR0mSM&feature=youtu.be[/video]