I think you should set up just like any other well pump set up, at least the ones that are common here in the states.
Pump fills up expansion tank which is on a tee, the pressure switch shuts it off at when it is full, as she uses it and the pressure drops low the switch kicks it on.
The only difference would be that you could bury the pressure tank and I guess use a smaller than normal tank. Surely you could fit a 20L tank somewhere. If you bury it just put the tapping side down so that you can drain it and repressurize it with air if it doesnt have a bladder or the bladder goes bad.
Then you wouldn't have to worry about her forgetting to turn it off.
Pump fills up expansion tank which is on a tee, the pressure switch shuts it off at when it is full, as she uses it and the pressure drops low the switch kicks it on.
The only difference would be that you could bury the pressure tank and I guess use a smaller than normal tank. Surely you could fit a 20L tank somewhere. If you bury it just put the tapping side down so that you can drain it and repressurize it with air if it doesnt have a bladder or the bladder goes bad.
Then you wouldn't have to worry about her forgetting to turn it off.