My system has four planters and one reservoir. There is a hose from the reservoir that runs horizontally under the planters. Each planter has a hose at the bottom which is fat enough to contain wick. This hose is connected to the horizontal hose. The wick is about 10 inches long with half of it in the hose and half inside the planter. I made the reservoir out of a 4' long section of 4" diameter PVC pipe. The reservoir should be hung so the lowest point of the reservoir is just barely higher than the lowest point of the wicks. The reservoir should also be shallow enough that the water at its highest level is below the dirt.
The water travels freely from the reservoir down the hose and back up into each wick. The wick, using the power of capillary action
, takes the water up into the dirt where the plant roots have a party. If you understand this concept, you're 80% done.
My setup is only one example of how this can work. You can use this as a guideline to make 1,000 planters with 20 reservoirs. Go according to the materials you can acquire and what physics will let you get away with. While planning, always be mindful of how much your planters and reservoir will weigh when they are full, how strong the chains are, and the connections that hold them in place. My assumption is that you can figure out how to hang these large, awkward items in a safe way. I will show you how to build the parts for water and dirt.