Filling pool with Well water without running well dry

[Poconos]

Sissy,
Welcome to the forum.

First some questions:
Vinyl liner?
Filter type?
Do you have access to another pool pump or can you temporarily move the one you have? Or even rent something for a day or two?

You may not have the luxury of being able to wait days to fill a new pool. First, nothing wrong with pond water if it doesn't resemble a swamp. You're going to shock the heck out of the water anyhow. I have a stream that I use for fill whenever necessary. You could always test the pond water beforehand for metals, bacteria etc.
If you go the pond route, have a sand filter, and an extra pump (or move the real one temporarily), you can pump from the pond into the waste port of the filter, set the valve to BACKWASH, and the filtered water will come out the skimmer. The water will be flowing in the right direction for filtering. 1.25" PVC pipe is cheap so you could even jury rig a temporary line from the pond to the pool without permanently bonding the joints. Just pound the joints together with a short 2x4 and they won't leak.

On the well pump...they don't need a rest and the easiest mode of operation is to let it run continuously. Starting and stopping puts a torque on the pipe and additional use of the starting circuit. Does it make a difference??? Who knows. When I initially filled my 22K gal in 1997, before I figured out the stream, I had 3 hoses from the pump so it wouldn't cycle. Pump sucked a lot of silt and mud but over the Winter it settled. Never dried up.
Al

Edit: If you're really ambitious you can do like I did and bury the pipe. My stream is 140' from the pool and I use it to either fill or discharge. I use either an old Jacuzzi pump for bulk fills, like the leak last year, or a tiny Flotec submersible for slow fills. Bury a couple electrical lines too.