I have been searching a little on DG to find my answer and can't seem to. I have access to about 45 (free) five gallon buckets that stored pool chemicals original. I'm wondering if there would be a problem using them for container gardening of veggies? I understand the risk of chemical residue seepage or leaching into the soil but couldn't I line each bucket with a heavy plastic bag? Or spray sealant inside them? I'd drill holes in the bottom but that may not keep them safe. Any help for this newbie is most appreciated. Thanks!