I washed all my pipes & tubing with soapy warm water after cutting to length and prior to gluing together. Never had a problem. But converted back to soil because of bud rot when I ran Hydro.

Did have trouble before germing in a foam meat tray.
Hempsouth Reviewed by Hempsouth on . PVC pipe system Ok guys, most of you old timers might remember me but I am only popping in here for one question and one question only. If you make a hydro system out of PVC piping, would the chemicals from the plastic polymers or any other chemicals used in PVC production harm the roots of a cannabis plant if they are laid on the pipe and a constant stream of water was ran on the roots? I need educated answers. Thanks to all. Rating: 5