I have a two inch well driven to 34 feet. I have water at 27 feet. I wish to use the water for irrigation. Is there an inexpenisve method to test the well output? If it is necessary to actually connect a deep well pump to test output can one be rented? Also, when I put a hose in the 2 inch pipe it fills up with water (no check valve, what does that mean?

Thanks for any help or andvice.
Robert