Is PVC Safe for Hydroponics? Water Test Results!

I recently tested the water in my hydroponic rail system to look for possible contaminants from PVC or other materials I used to build the system. These are the results! See this article on our website for more info on PVC including some helpful research I found: https://www.simplegreenshydroponics.c... FREE guide on building a rail system: https://www.simplegreenshydroponics.com