My skimmer line feels like no suction whatsoever and I fear my line may have collapsed over the winter. My other skimmer line also collapsed several years ago and had this flexible piping coming out of skimmer which I replaced with pvc. Questions are how long can I effectively run my pool off 1 skimmer? Also how far does the flexible piping usually run from the skimmer? At some point it does convert to pvc as it is pvc at the valves. I am hoping that maybe I can access without having to bust up or cut out cement. Thoughts? Thanks in advance.