When you say sand, I take it you mean in the sand filter. Yes, normally change the sand or clean the DE filter when we change the liner since it most likely has been some time since it was changed..
No. Replace the liner.
I had an inground pool installed. We just turned on the lights at night and noticed footprints on the bottom. Can this be fixed? Call the pool company back. The bottom is normally sand mixed with cement. The liner will probably have to be removed and bottom smoothed. They should have checked that before installing the liner. Those printswi catch sediment and debris for the life of the liner.
Filter it then swim in it.
They don't make them for in ground.
air pocket behind pool liner inground
Remove the old damaged liner and install a new one.
If you have water behind your vinyl in ground pool liner, you should first lower the water in the pool to normal levels if it is over-filled. Make sure that the vacuum pipe is clear, unclog it if it is not. Once it is unblocked let the water from behind the liner flow out.
YES.
It's certainly worth a try. I would use Aqua Seal or Seal All. -Both available in Walmart.
Yes, but it would be very expenses..
We used Garrett Vinyl Pools they have been around for years.
Termites can and do cause damage to pool liners.....The trmites will come through cracks in the vermiculite and actually eat through a liner.