I just open my pool for the first time after I had it winterized by a professional. I can't get the pump going. I tried to prime it. Water gets sucked down and disappears. Maybe I don't have my connections attached right (picture attached) Also the collar is leaking (picture attached) I think it's stripped just spins doesn't tighten, do I need teflon tape on it? how do I replace that maybe that is causing the pool not to be pressurized? Any help is appreciated thanks.