New Well Relief Valve Blowing Water

[kkando]

So here is my setup... I have a new 1-1/2hp franklin pump about 200 ft down the well.  At thw top is a relief valve and the control box. About 10 feet away I piped over into the barn my csv, 40/60 pressure switch, tank, 2nd relief valve.  The problem is it seems to be blowing the relief valve at the well and the pressure switch cannot turn off the pump.  Why? 

[kkando]

The tank is set to 20psi of air.

[Cary Austin]

That is because you cannot have a pressure relief valve before the CSV.  The relief valve after the CSV is the only one you need.