Sounds like you have water mold. We had the same problem. We use baquacil chemicals instead of chlorine. Baquacil ultra is made to get rid of the mold. It worked for us. If you are using chlorine, you may need to see if there is a chemical to use for it.
concrete
You have no choice but to replace the liner
Duck tape
no
Try casting a flocculant let it settle for a couple of days and then vacuum the bottom layer of water to waste you will see the layer you want to remove on the bottom of the pool. check with your pool shop for a good brand of flocculant.
You can buy bottom rails/channels at a mobile home supply store. They are used for the skirting!
Gravity is a theory that i don't believe in. It's not anyway because the earth rotates and there is no on top or bottom
No, celery are stalks that grow above ground. Its relative celeriac is a root that grows underground.
no,cause it will break
Buy a pool patch
Actually, there is not much difference, but a ground floor is usually the very bottom one and the first floor is usually the one above
"Normal" tire use on a road does not leave enough residue behind or allow the residue to stay still long enough to accumulate a black surface above the concrete. Do a burnout with a vehicle and you will see in that situation that large amounts of tire are left on the ground.