You'll have to pump the pool down far enough to get the liner lip back into the groove. If you need someone to do it check out pool businesses in the phone book.
a toilet plunger a todlers face or a cucumber
Yes it can be done
You need to throw down a 3 inch layer of pool sand then level it out a put your liner down.
They are caused by subsurface water. At sometime your liner floated and then went back down. You should check your drainage.
Steel takes longer to heat but stays hot longer. Aluminum heats up quickly but also cools down quickly.
it will probably settle down when you weigh it down with more water
No, I don't believe they do, but other bands such as Atreyu and Skindred have released songs titled "Falling Down."
Yes by putting an even layer of sand down you will protect the liner from the irregularity's in the ground and absorb impact from above.
Komatsu PC 75 will rip out a steel wall liner pool like tin foil * Take out the liner * Tear down the walls * Break some holes in the cement for drainage * Fill it in with clean fill
That's a lot easier to do BEFORE you put the water in the pool. If you've already put water in the pool, it will be difficult to do without tearing the liner. Water is a little over 8 pounds per gallon, so it really presses down on the liner.
Sound like a doughboy pool. If so you will need and expandable liner, they are 20 to 25 mil and have to be "floated in" ,get a pro for this DO NOT try it yourself liners are not cheap.