Hi Kochab.

The pics I've posted should give you a good start, esp the ones that have the drill sizes on there. You can get almost all of it at HomeDepot and a good hydro store.

DWC actually uses three modes of oxygenation.

The first is when water is drawn through your inert material. This gives you some oxygen.

The second is the oxygenation you add to the water. This gives you a lot more oxygen.

The third is oxygen from the air (where your roots hang down before they touch the water). This is the best oxygenation. BUT the roots have to stay moist.

I use a reef pump (already pictured) for the second part. I use two airstones per bucket. You have to have well oxygenated water b/c in 3 weeks 1/2 the roots are basically sitting in water (well at least some of them), and they love it.

The pumps are Hydor and although come as submersible they will convert to an external. These my hydro store doesn't stock but I get at marine depot (google and you can order off the web).

Peace,

Killbud