Safe plastics to use in vegetable hydroponics system?
I've read some conflicting articles on the use of different plastics in hydroponic gardening in particular the use of PVC pipe and fittings and #2 HDPE plastic tubs. I'm wondering which plastics are food safe for a hydroponic garden?
Fairfield County Connecticut
I was assigned your question and unfortunately we do not have any hydroponics specialists at UConn. There are a number of hydroponics companies in CT like www.ctroots.com, www.goodtogrow.com, and www.growcrazyhydro.com that sell supplies and equipment. I would consult them as well as some hydroponics reference books to see what they suggest for food safe plastics. I would also check out the UMass website http://extension.umass.edu/floriculture/fact-sheets/hydroponic-greenhouse-production-resources which has some hydroponics resources listed. I believe Cornell also has information on hydroponics. Hope this helps.