This year in Chicago been crazy cold ice and snow ... This is my AGP 15ft round .. When i closed the pool i went about 5' below skimmer.. i been noticing more and more ice expanding up. Im not sure if my winter cover has a rip and is causing any new snow and ice to go in the pool and fill it. In years previous i never seen ice in my skimmer box like this...Im afraid with additional snow or rain im going to have a serious problem.... I was thinking do i put another winter cover on top of whats there now to avoid any other snow ice or water?? Am i in trouble???