My pipe to my well froze. I fixed that using shark bite and pex, then primed the pump(1/2hoarse flotec)... The problem is when I turn on my water at the pump or at its farthest it shoot s out air and water and the pressure fluctuates more frequently the longe.r the water is running however the pump is cutting on and off at the correct psi... One last thing there is smartwater fitler thing close to pump I noticed air bubbles in it and pressed a red button which made water pressure normal for about an hour. Please help... thank you