"David Lesher" wrote in message
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"PrecisionmachinisT" writes:


Flow meter.

http://www.flowmeters.com/

Alas, far too pricy; I'm just looking for visual observation,
not precision measurements.

But usually hydronic systems just zone valves and temperature sensing.

Which is why there's an issue here...no way to observe flow.


If you only need to meter one circuit at a time, there is a near-positive
displacement one in most of the newer water softener units; perhaps you can
oder from sears or someplace and adapt...not sure what the sensor is but a
single hall should do it.

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