I have an inground pool. When vacuuming it recently, it quit picking up debris. I've had this happen in the past and used a 'bladder' to push out anything clogging the line. This time, it didn't work. In fact, after I inserted the bladder at the pump basket, water did not come out of the skimmer hole. Or at least very little water. Which means what? When I turn off the skimmer, the main drain continue to function without any loss of pressure - no bubbles, etc. If I turn on the skimmer line, it quickly loses total prime. And with the skimmer alone turned on, no prime. Any suggestions? I don't see any cracks in the skimmer itself but the line is buried under concrete... We are considering digging around the skimmer but if there is a break somewhere else, it seems pointless. Love all your comments - there's a great deal of history and knowledge here. Wish I'd had it when we bought this house 18 years ago!