Other Factsheets Printer-friendly .pdf file Excerpted and adapted from Grow with the Flow , by Philson A.A. Warner, Donald A. Rakow and Charles Mazza. David Hillman, Robert McBride and Wayne Torgenson helped write this section. Below is an excerpt from the publication detailing how to build the unit. The T sections and two 90 elbows are connected with short lengths of PVC pipe to construct a U-shaped unit that lies horizontally on a surface.
Liquid is pumped from the catchment tank through the feed line and feeder tubes to each plant.
Liquid returns through the unit to the tank by gravity. Before beginning, read all the directions thoroughly to understand fully the construction approach. Fasten the miter box to the work surface with a C-clamp. Using a second C-clamp, secure the PVC pipe in the miter box to ensure a square cut. Using the hack saw and the 90 cutting guides on the miter box, cut all connectors and lengths to the dimensions specified.