I took the cover off my pool yesterday and the liner had bubbled up. By pulling the liner away from the top I can see lots of water behind the liner. There has been a lot of rain this year and the gound is almost all clay. I was told there were drainage tiles put in when the pool was installed but with the soil type they will only help so much. Can I just suck the water out with a pump and smooth the line back or is there something else I should do?

Thanks.