Installing a brand new shallow well pump, it won't build pressure past 19lbs what would be the problem

Hi Kenand welcome to The Plumbing Page at AskMeHelpDesk.com You are responding to a 3 year old dead thread so I gave you one of your own. Please check the date before you post. Thanks, Tom
Turn the pump off and check the pressure gage. Did it drop to zero? Let me know. Tom