I am considering buying a roll of 800 gauge high density polyethylene to line my growbeds, is 800 gauge heavy enough? i'll be using pea gravel as grow media,a roll of (HDPE) is very expensive, i want to use plastic or rubber pond liner but i was concerned about the plastic leaching into the water!, does rubber leach? would leaching in ap systems gb or ft liner's hinder AP farmers from obtaining an organic cert?. thank you.
TCLynx - do you use liners in the Rubbermaid GBs?
I'm hoping to avoid the liner all together, was planning on filling the RMs directly with gravel.