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Got a question about water pressure here. I'm planning to build a stacked indoors aeroponics system with three beds under grow lights. I reckon it will be about a meter and a half high, with 6 spray heads per bed for coverage. Should I be putting the pump at the top and using gravity to build pressure at the bottom, then buy another pump to recirculate drainage, or just buy a stronger pump to send the water up from the bottom? Also, if the latter, what sort of power pump is required?
