I have been looking at using Rob B’z Kalkwasser dosing Venturi and it occurred to me this might also be how I could remote dose other liquids to my display tank from a fish room 25-30 feet. If the water flow from the pump is split 4 ways to different Venturi’s, then another manifold combines them together, would the flow rate be equal between the 4 venturi’s? This would be a closed loop from the display tank sump, to the fish room and back to the sump again.