I don't want to get in the mix, and i'm not trying to sell anything, but i do sell ProComp, electric water pumps, they are dirt cheap compared to other brands, i've sold about a dozen of them with no problems, one guy i know has run one for over 5 yrs.
In fact Hammertime runs one with no problems also.
I have a CSI out in my shop that needs a motor, the replacment motor cost more than a new ProComp pump.
Just saying.
Zip.