The one curve that I would like to see for blocks is flow through the block vs pressure. The way I see to get that info would be to set the block up in a loop with a powerful pump like the md30rz with a valve on the outlet folowed by a flow meter and then a accurate pressure gauge. That way tou could plot the flow vs pressure of each block just by varrying the valve and take the flow and pressure reradings. I have always been curious on what the flow in my system is and have thought about putting in a 0~5psi guage on the outlet on mine. That way as long as the pq curve of my pump is accurate I could get the flow by plotting the pressure reading to my pq curve.
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