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dpb

wrote:
On Oct 28, 5:44 pm, "Bob F" wrote:
wrote in message
....
Can turning off the water damage a recirculating pump?
Running a pump with no water flow can damage the pump.

Thanks Bob. Do you know if there's an amount of time it can run
without water or if certain kinds of pumps can be damaged more than
others? I trust that you and my plumber are telling the truth, I'm
just trying to explain why our pump was not damaged when the water has
been turned off in the past.

....

Nope on the first, yep on the second--depends very much on the
particular pump design.

Probably because the valve(s) that were shut didn't include the recirc
pump inlet/outlet valves and there was adequate recirculation to avoid
running it dry for too long.

As somebody else noted, it's running the pump dry that matters and that
wouldn't be likely for quite a while even if makeup is off temporarily.

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