No. The tile resisist a water line stain. While paint does not.
It would be better to remove the old tile, then put your new tile in it's place. If you tile over the old there is a chance it could come off and your new tile with it. I know of an adhesive swimming pool tile border made of 4mil liner, its a peel and stick called borderlines adhesive tile manufactured by Jedco Products. All the internet websites carry it and it looks great, it would stick right over the old tile, this could get you by until your ready to remove the old tile.
Pool furniture is made for deck, poolside or patio use, and not usually thought of as items you actually place inside the pool. Inside the pool furniture might include inflatables or items made from PVC and waterproof materials. blog.poolfurnituremart.com
Just cover the bottom of the pool to keep it cool this will prevent the cement cracking
If it's calcium then it will foam up if you put straight muriatic acid on it. this wont hurt the tile. however be careful as muriatic acid can be dangerous stuff.
Yes, you can put rug over ceramic tile.
yes the tile has to be fixtures and then put the tile
put in about an inch of water, then pick up the wrinkles and pull them out from the inside.
You have to put a cement board like Hardibacker, Wonderboard or Durock over the ceramic tile.
Tile contractors are the same thing as tile setters in that they both put tile and grout on your floor. However, each setters and contractors have their own specialty .
yes just prep your your tile with ardex
If you are installing a floating laminate floor, you can easily put it right over the tile.
You can get special varnish/sealer for it at tile stores.