Planning on getting an early start to this years maple season here in Maine. I'm going to start with a homemade RO using plans I found online. It uses (4) 150 GPD membranes hooked in series with an Aquatec 8800 pump running around 70-80 PSI. I'm hoping to add flowmeters to the permeate and concentrate outlets to monitor the flow and adjust the system without having to run them into glasses and measure every time. Does anyone have a recommendation on how much flow I should expect / what size flowmeter would be appropriate. Thanks DSC_0632.jpg