Plumbing several DWC systems together?

[DND]

Not much of a DIY'er, but I know it's possible. The tubs are 2'x3'x7" which are large, but shallow compared to most DWC systems. Due to them being shallower, I see a lot of excess maintenance and ph fluctuation needing to be attended to so I would like to have a larger central reservoir to cut down on both.

What type and size fittings/tubing should I use? Also, once it's plumbed together how will I control the amount of water in each system so that they wont overflow? I have ran DWC before, but only as individual units. Sorry if these questions sound elementary, but I honestly don't know how this works.

Thanks,
DND

 

[bobby]

You can use 3/4 inch. black poly tubing or even pvc.

To make sure they don't overflow, you must have a controller bucket that has float valves in it that control the filling and draining of your containers.

 

[ttystikk]

The water will need to be circulated somehow. Either make it flow around a loop and through the growing sites, or periodically empty and fill into a reservoir. You'll also need to chill the water to keep temps in the low 60s.