Raised to 38 inches to be easy to work with. 2 x 4 feet of planting area. Can hold 2 medium sized tomato plants and some lettuce/basil under them(or equal plants).
20 inches deep soil section supported by recycled pipes and a screwed on wire mesh. 6-8 inches of water collecting space. Water can be accessed by a small pipe connected to a hand pump to siphon it out.(red thing at the right of the planter).
Holds extra water to be recycled or re-watered. By doing this saves fertilizer. Roots can reach it.
Thanks to George for its help and improving ideas to build this version of it.