Shurflo pushing uphill?

[TonyL]

Update... I used a sight level to get a more accurate elevation figure. Looks like 24' of vertical rise. So, I hooked a 5/8" x 50' garden hose to the output side, and ran it up to the second story window of my house, from the basement level. 24' feet. I also installed a vacuum gauge on a "T" for the suction line. With my wife measuring output, the 4008 took 40 seconds to pump a gallon of water upstairs, while maintaining 12" of vacuum. I think I've got a little room to tweak since I'll be using a smaller id hose for the transfer up to the sugar house, and the input will be gravity fed downhill to the pump. I had planned to use my clamp on ammeter to check current draw, but naturally it was in my work van and unavailable.
Currently building a controller now.

[Darrel Wright]

I just tried a 4008 pumping 500ft through 5/16, up 60 feet. Pumped 1/2 gpm and was threatening to overheat after 10gallons. Not sure if this is due to friction head in the small tubing, but if anyone finds this old thread wondering what the limits are....well it can't do that.