D.I.Y. HYDRO System:
Easy for Any Size
A Home Build Flood and Drain Hydroponics Systems can be made to just about any practical size needed and works great with a wide variety of crops-affordable and reliable-the “pick up truck” of hydroponics systems.
Critical area. Getting the right ratios of “fill” to “drain” with the right size fitting/connectors for your flood table can take a little experimentation.
Ready-kits can be bought in store or online.
Your pump and reservoir are going to be in a salty and slightly acid environment once you mix nutrients, water and pH adjusters.
You don’t need a lot of pressure; reliable and resistant are what you are after. Safety first, always with pumps-seriously.
Liner + Grow Media
6 mil polyetylene, doubled up, works great; but be careful, ie no pointy objects or sharp edges touching. Can be replaced between crops if there has been any problems.
Grow rocks, LECCA, rockwool, perlite, coco mixes…as long as it drains freely are good things to grow in with Flood + Drain
Use “food safe” tubing that doesn’t allow light in, ie black.
Make sure your connections are all tight. Hose clamps are always a good idea; especially on pressurized delivery lines.
Timer or You
Ideally, you can automate your system, especially if you are really serious about growing or “grow big” when gardening.
For basics, a simple grounded programmable timer or something with 5 minute increments will be great too. You can also decide when to initiate a cycle by inspecting and flipping the pump on and shutting off manually.
Gravity flow is even possible with a bucket and pulley.