My friend and I have tried to help an old Guy in the neighborhood with his
Well Pump problems.

Here is the timeline.
Went to see why his pump was not pumping water for his lawn.(he said it
worked fine just a few days before)
There was water gushing from the back of the pump,after we had primed
it.(Nothing before Priming)
We figured a blown seal and since the pump was very old
he wanted a new pump installed.
We bought a new Flotec 1/2 HP 120 V. Pump from big Box store.(essentially
the same as the old pump.)
Installed the new pump, but used the old in line check valve.
After pump was installed, we primed the pump and got only a little dirty
brown, muddy looking junk from the pump.
Next we primed again, several times, actually but no good results.

We would like to help this Old Guy, so any Ideas would be helpful.