I would use straight hydrogen peroxide, rather than bleach. some plastics absorb CL2, and you will be screwing up your plants, plus make it hard to get the Ph stablized.
If you do use bleach then run a lot of vineger thru afterwards, then copious amounts of water

Daddy
Daddynobucks Reviewed by Daddynobucks on . my new room Hi i have a 8X8X9 room i am going to use a drip to waste system. i expect to have 12-15 plants set up in three 2x7' beds. I am thinking of 6 400w lights to good coveage and less heat. Ballasts, resevoirs, pumps all outside the room as well a ducting. Using rockwool as a media. Do i need to do anything to the rockwool or is it really sterile. Also how can i steralize the nutrient lines from the pumps to the plants? Also does this sound like a good set up? I also have co2 emitter. ajp Rating: 5