buffalobear:
My flow was too low to produce continous readings!
If you're on the limit of what the sensor can pick up, you might find that small changes in the arrangement make the difference between success and failure. For example, internal friction might change depending on the orientation of the sensor - perhaps with the the turbine axis vertical and water flowing up through it you'll be able to get a reading with less flow than with the turbine axis horizontal, if you see what I mean. If you can get at it, you might be able to increase the sensitivity by restricting the flow so that it only impinges on one side of the turbine rather than being evenly distributed across it (doubling the speed gives you four times the dynamic pressure) - the cost would be reducing the maximum flow rate and perhaps reducing the accuracy/consistency at higher flow rates.