This Pump keeps running constantly at my husband's grandma's house. His cousin lives very close and goes over often to turn power off to the pump. I've been told that the pressure switch has been replaced just a few years ago. We believe the very old pump needs to be replaced. Problem is, none of us have any idea what type of pump we need to buy. There is no name, model, labels, specs...nothing. Can you tell by these pics if it is single, double, submersible? I want to know about how much this will cost. The cousin has called a pump guy to get an estimate but he wants to charge $100 just to come out...is that normal?