ok the rambling update
So...i have been thinking about and slowly moving towards DWC and having zero cash tends to make you look twice at everything.
The 2l hempie got me interested in DWC but is inherantly unstable due to the small footprint of the bottle, which is almost never flat anyway. Naturally this leads me to think of bigger and better so a 3 litre and hey while im at it, lets use those square ones. I didnt want to cut the top off and turn it upside down as this was another instability. can be tricky to pick the flimsy pot up without the inner pot popping up e.t.c
i recon that once the roots are well established into the jug they help it stand firm so we probably dont need a lot of tub for stubby quick grows (once i get into the flow, ill probably be allowing 15days for a clone to root and 25 days of high intensity cfl vegging and then switching to flower after taking the lower stems as clones.)
so i decided to just attatch a seedling pot to the lid and put holes in the lid for the roots
and then i silvered my bottle to block out the light, except for a strip down the back for checking on the roots, quality of water and water level, this is narrow enough to be covered by a single strip of electricians tape.
It was at this point i realised i had been collecting a few of these bottle, but the lids had been binned, so i spent some time searching around the house for something we get a LOT of in any house and was plantpot shaped, preferably with a hole in the bottom.
Of course the answer was right there....
the cardboard tube from a roll of toilet paper. this was not going to stand up to getting wet tho so it needed a barrier, easy enough, the shopping bag the loo roll came in D and finally bonded some loose weave fabric to the bottom for the roots to pass through.
The square around the neck of the bottle is a simple contraption, this prototype is only about half the size the real one would be (i reckon 12 to 15 inches sounds like a generous foot print for a plant rapid flowered). the idea is that when you line up all your bottles in neat rows, there 'shields' lock together in testudo to block out the above heat and light, this forms a sub strata layer that can have as many fans as you like blowing gusts on the resovoirs to keep them cool and almost none of this air movement would be felt by the foliage, allowing this layers temprature/co2 to be controles independantly of the sub layer.
i plan on doing it a little differently for these new 1l jug hempies, i will make a shelf at the height of the cups atop the jugs and cut docks out of it to slide the jugs in. the wood that is cut can be turned into grommits to pluge the spaces between cups making an almost perfect wooden shelf between the water and the heat of the lights.
forgive the crude art =/
and finally a quick peek at my new jugs in action!
And a sneak peek at the progress on the growroom and my plants, but just a peek, you can wait for a detailed plant report =p
the rest of my plants will be going into a new pot. each pot contains 1 litre of fresh water (changed every morning) and the top section will be pure perlite, pretending to be a soil grow, i will feed this exclusively on seaweed extract and as soon as im able i will be PH balancing my water and adding hydrogen peroxide. the feed i will start with is 100% strength seaweed water, enough to wet the perlite fully, but without more than a drip or 2 falling into the rez. this will be followed an hour later with PH'd water to dilute the perlite (any run off is welcome in the rez to allow the plant to snack after its meal)
. This is why I like my bags of soil and a couple bottles of nutes, my brain hurts when it gets complicated 
