zep_lover
Well-Known Member
the ppk system was started by a guy named delta9nxs on icmag.Can you elaborate on ppk system?
I was gonna run two 600's stacked but decided to try the 1000 on a mover first. 1 lamp (cheaper at that), 1 ballast etc.
Ditto @ttystikk , bad ass vert grow you have there
it uses a perched water table.the top container holds your medium (the prefered medium is turface)and your plant.
there is a tail piece in the top container that goes into the bottom container.you set your level of nutrients in the bottom container to set your air gap.
the air gap is how you set the perched water table.the tailpiece is filled with your medium and allows your top fed nutrients to return to your main res.
the tailpiece also allows your plant to drink from the bottom container if your pump quits or your timer fails by wicking up the nutrients through the tail piece.
most people use jacks hydro mix 5-12-26 and calcium nitrate mixed to 1.2 ec or around 650 ppm.that is it.nothing else
no chillers for the nutes.
it is pretty easy and cheap.