Pond pump speed control
In uk.d-i-y Benign Vanilla wrote:
"Tim Downie" wrote in message
...
Is is possible to use a speed controller (like a light dimmer) with a
small
pond pump?
I have a Bermuda 3000 (3000l/hr) submersible pump that's really a bit more
powerful than I need. The motor has a solid rotor that appears to be made
of a ferrite like material.
I know that speed controllers can cause overheating problems with some
motors but given that it's underwater with water bathing the rotor, I
don't
imagine this would be a problem in this case.
I'd suggest the following...
1. Get a new smaller pump, and sell this one on eBay. Your electric bill
will thank you.
Pumps may use less than sticker ratings.
I have several 600W submersible pumps, that are (IIRC) 3000l/sec, from
lidl.
I stuck a meter on them, and they come out at around 360W.
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