Came across this
page and thought it might be of interest to some of you.
I also thought
these unusual high head LVM 12/24 v pumps might be worth posting. Specifically the LVM 107 (Nile) 2.38 gpm @ 11.5 ft head, the product
spec sheet show 25 ft as shutoff. Note they can be in-line as there is a 1/2 hose barb under the strainer. I wonder if they make a lot of racket.