My well is 400ft deep. Static depth is 150ft>.
I have a storage tank of 2200 gal
If the power fails Id like to have a backup hand pump.
If power stayed off for any significant period of time my water needs would be adjusted for just basic sustainability amounts for 2 people,no animals,no plants to water.

What type of manual pumping unit,if any, would be available for this depth?
I realize that even if it is manually pumpable at 150 ft level,at some point soon with pumping it will get harder to hand pump the water because the water level at 150 ft will go deeper quickly due to the small amount of water in the 4 inch casing.Maybe its 3" I dont recall offhand.
Thoughts?
Thx