On Thu, 14 Jul 2005 07:18:01 -0800, floyd@apaflo.com (Floyd
L. Davidson) wrote:

>"stormrider" <oceanwind42@yahoo.com> wrote:
>>What do you think about the pump stopping, though.
>>First it will fry the components.
>
>If there are components that will fry with no flow, then a flow
>meter of some kind that will positively indicate that flow is
>below a certain amount, and a mechanism to shutdown the system,
>are essential for unattended operation.

No, again the best solution is to actively monitor the
actual part(s) in jeopardy. This not being a
enterprise-class, nor enterprise budget system (as far as we
know) there will typically not be an enterprise class budget
for precision flow metering and feedback. It is additional
complexity that would be implemented while unproven at great
cost and no certain benefit over already proven solutions
for a PC.

In other words, the same essential mechanism, actual
component temp monitoring, is monitoring the only parameter
that really matters. Water does not get damaged if IT stops
flowing, we only care about the effect and can measure that
effect quite a bit less expensively and just as reliably,
and at greater precision unless there is an extreme budget
and tons of testing and refinements. That's simply not cost
or time effective even if it did work as well.