Maximum Yield USA December 2016 | Page 130

A TALE OF TWO SYSTEMS With ebb and flow, as long as the tray or table isn’t too wide to allow reaching for plant access, maintenance is not an issue. Just pick the plant up and move it, then return it or not. With non-modular drip systems, removing one or two plants can be enough of a hassle to discourage you from doing the maintenance (at least temporarily) because of the connections issue. The drip systems that utilize special modular connections that make disconnect and re-connect easy make this aspect nearly as easy as with ebb and flow. Ebb and flow has the edge versus the more typical non-modular drip system. The difference in root disease risk is substantial between these two systems. With ebb and flow, the reservoir water is recycled and mixed between each plant, so if one plant gets phytophthera (root rot) they are all likely to get it. Chilling the water for an ebb and flow system is often recommended to minimize bacterial and fungal growth. With drip systems, there is no recycling or mixing. In the case of both systems, the water reservoir should be cleaned routinely in order to keep diseases at a minimum. CHILLING THE water for an ebb and flow system is often recommended to minimize bacterial and fungal growth.” The verdict? There isn’t a clear winner. When it comes to choosing the best hydroponic system on the market, make sure to consider all the parameters that will affect your success before you leave the planning stage and begin building. Enjoy! For additional tips on grow media and material replacement for these systems, and to review the reference information and pages for this article, scan the QR code. 128 Maximum Yield USA  |  December 2016