Masquernom
Full time employment: Posting here.
Water rights east of the Mississippi(due to colonial English and French laws), are different than most of the west (due to Spanish rule). In the east, you can take as much as you want, but cannot disrupt downstream rights. Not so in the west. Coal preparation requires vast amounts of water.
Working underground, we had numerous issues, problems, methods of moving water that created problems for ventilation and transportation. If you have a decent compressor, and can minimize the use of compressor rubber hose for practical matters, I would suggest this type of pump, below. Not highly efficient but will handle your head problem. Use a small discharge hose on pump to make it easier on pump and will give you some pressure at the end of your discharge end. I used thousands of these kinds of pumps over the years to move millions of gallons of water. Use a 5-10' suction hose with a strainer, and if possible mount on a wooden pallet, hang from, or to tie from a tree as it will "walk" unless restrained. Put a valve at the pump to control the compressed air. No worries about shocking anybody or anything.
https://www.northerntool.com/shop/t...MgYcX5UcayONqzoYMrryj5zQbJWAhkU0aAnjTEALw_wcB
Yes, I've used a lot of the double diaphragm pumps through the years. Their discharge pressure is equal to the air pressure supplied to the pump. They are also great at handling solids and mud. I just assumed he wanted a gasoline powered pump. I'll check the air supplied needed for a smaller double diaphragm pump. I suspect they need a pretty good sized compressor to run them.