copper or brass?

[TamyLove420]

is it advisable to use copper or brass fittings in the pump set up for my aeroponics system?

[Prodaytrader]

Neither I would think. PVC is your best option. Any contact with metals is going to throw off your PPM count by adding in leeched trace metals of either copper, tin or whatever else is found in brass. Yup...I think PVC is ur best option.