I have a 115v Multiquip 2" electric trash pump I'm borrowing for a project this weekend it's 95 GPM with max head of 45'. Multiquip puts out products more related to commercial than homeowner. If you have 3phase available, it will save you a bit on the initial cost and the cost of operation. Maybe a phase converter is an option?

Here's a 115v model.
http://www.multiquip.com/multiquip/609_792_ENU_HTML.htm

http://www.multiquip.com/multiquip/pdfs/...08-brochure.pdf




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