control box

Hi I bought the house 6 months ago and today noticed a leak in one pipe coming through the control box. I am totally unfamiliar with the well pump system/function. Attaching the pictures to explain the setup. It seems from the Control Box there is a pipe going to the wall , that i believe is...

About 2 weeks ago, our water suddenly slowed to a trickle. I went outside to my "pump house" for a visual check. Everything looked good, but when I tightened the electrical connections, the pump came on. This was short-lived, however, and problems continued. A day later it happened again, and I...