dont use aluminium foil! it focuses light into hot spots and cant roast your plants! i use white printer paper or white gloss paint, NEVER USE FOIL...! thats the no.1 rule, people confuse MYLAR with foil, dont worry, its a mistake thats easily made, just rip down that foil asap,

p.s. I like the shower idea, i would probably only use it for seedlings and adolescent plants, then move adults somewhere more airy
Abattoir Dream Reviewed by Abattoir Dream on . Shower turned Growroom!! Hey all, I have setup my shower vanity (just a standard sized shower) into a growroom. I have insulated with aluminium foil, the covered again with PVC foil with the White side out. I have covered the top with a type of "lid" like apperatus, so as to keep the temperature maintained at a constant 25-28 celcius (80-85F) I have three 20 litre pots, filled with coco-peat organic, and are using the THC A and B Nutrients. Over the 3 plants I have 600watt HPS, With a 600w hps Ballast running at 18 Rating: 5