I hope the new regulations allow for the use of pumps which are made of plastics other than food-safe. Pond pumps and sump pumps are ideal for many types of hydro, but there is no option to purchase them in food-safe plastic models. It's the same with pond liners, plastic flood & drain trays, pipe, hose and fittings. No one is making food safe plastic hydro equipment. It might be possible to accomplish, but the current regulations block out all commercially standard hydro methods and equipment.
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