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How to control AC Pump in System

J

jkpq45

Weaksauce
Joined
Mar 17, 2006
Messages
69
Hi Guys,

Bought a 110V/1Phase pump off EBay and it works great--I have it submerged, as I've had inline pumps crack and leak--AC since no DC pump fits my needs. My problem is that the pump is simply dumping too much heat into the water for system temps to be acceptable.

The culprit here is the darn flowrate. In stock trim at 0 head, the pump throws out 11.67GPM (700GPH, OMGCOPTERZ!). I estimate my flowrate to be slightly less than that, but still higher than I need it to be.

SO, time to throttle it. I've worked with 480V/3Phase Variable Frequency Drives before, but those are expensive and are wrong for my application. I honestly don't know how pulse-width modulation would react in my system. Where can I get any of these or any other solutions for less than about $40?

Thanks for the help,
jkpq45
 
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