My water pump in my basement discharge

[Nancy]

Hello we want to change our water pump for a new more powerful. We have an artesian well. Since the change there is frequently air in our pipes. Then the pump gets discharged. When we remove the cap on top to recharge it there is an air pressure coming out of it. The water coming out is hot. I do not know if the toyo that goes to the then is of too small caliber. Or if it is my pump that is problematic or it is the retention tank that is defective or there is a leak somewhere. Thank you for helping me

[Ahmed]

You mean that the pump is defusing due to an air intake, I suppose ... You have to start by examining the watertightness of everything that was disassembled and then reassembled when changing the pump.