depends on the plastic, some are better about leaching than others. plastics also photodegrade (instead of biodegrade), so putting that bad boy in direct sun m

depends on the plastic, some are better about leaching than others. plastics also photodegrade (instead of biodegrade), so putting that bad boy in direct sun may not only help grow algae (I'm on well water and filtering won't stop that) in there but also break the plastic down into your water. if you're serious about filtering look into in-line reverse osmosis systems.