Thanks for dropping in iamadam............ ur location is not a million miles from my own
i'll think about that flowa, i was thinking the 8 pot wilma big pots which are 18 litres.
it would fit in my grow room lovely but i'm concerned about the spacing between the pots being too small and not being able to fully utilise the screen
That shouldn't be a problem man, You can do something similar like i did and tie the branches to the sides of the pot to start with that way you can move your pots around as you please, and once you have a good even growth between all 4, snip them to size, put a screen in and voila. Tying the branches down while vegging (lower your light to compensate) will grow a big plant and keep her nice and low, she will only spread out but still want to chase the light each day.
Spread the pots out and run 4 feed rings from 1 centre line. if you have a good adequate pump it will feed 4 feed rings easily, (ask a hydro store to see how many gallons per hour you want to run for 4 feeders, not drippers) YOU MUST have a pump powerful enough to fill all 4 rings, its easy enough, just dont go under!, better to have over powerful, you can submerge feeders. All depends on size of feed lines, power of pump, filters.... you can get flow taps, but most pumps (cheap) dont like the back-pressure.
3 x t-pieces for joiners, so you can split the lines get 4 hoses running out, that way you can have the pots exactly where you want.
Tip: soak feed lines in bath of hot hot water try to uncoil it as best you can if they are stiff. Or be adventurous and coil them so everything flows around the pot. my last grow had a loop in the return line, bloody thing had a tight bend so i made use of it.