Well with submersible pump has low pressure. After changing gauge and pressure switch,no change. Pressure gauge consistently reads 10 PSI. Pressure at tank schraeder valve read 18 PSI so I pumped tank up to 38 PSI. Still no change in pressure or pressure gauge reading of 10 PSI. Pressure is consistent but very low. What is the problem?
Thanks grulli

What's the control box setting? Does the pump shut itself off at 10 PSI?
Does it hold those 10 pounds after it shuts olff? Let me know, Tom

If you pumped your tank to 38# and the gauge is still reading 10, then something is going on with either your gauge or with the tire gauge you used on the tank. I know it's new, but 38 pounds is 38 pounds.