Carpet is not supposed to be glued to the pad, and I really can't imagine what advantage that would give you.
You could use duct tape to put it together, or hot glue it.
Explain what you mean by 'sustainable' -Obviously it will keep carpet down for years.
No, there is no carpet glue in cigarettes.
It is generally not a recommended procedure. The abrasion of carpet on carpet will cause both layers to wear prematurely. Certain types of glue down carpet can be installed over existing glue down carpet. Check the manufactures installation instructions. I do agree that installing stretch in carpet over existing stretch in carpet is not a good idea.
No, it will not work. Go to store and get a proper carpet glue.
Once the wood dries & you can do it right.
Carpet glue by its nature is extremely sticky as it is made to keep a rug from moving. If you need to get the glue off of a concrete floor you can use a floor grinder. You can also scrape it.
Try some good old fashioned finger nail polish remover. It works on super glue.
You can try using a citrus-based solvent or adhesive remover to break down the carpet glue. Apply the solvent to the affected area and let it sit for a few minutes to soften the glue. Then use a scraper or putty knife to gently remove the softened glue from the carpet fibers. Be sure to test the solvent in an inconspicuous area first to ensure it does not damage the carpet.
To install a carpet you would need to make sure you have the proper equipment. You will need a tape measure, seam tape to connect multiple pieces of carpet together, a putty knife to push the carpet under the baseboards of a room (if it has baseboards), a power stretcher to ensure your carpet remains tight and does not wrinkle, a carpet pad and glue to keep the carpet off your floor directly and make it feel softer, carpet cutters to trim away excess carpet and a tack strip around the perimeter of your ROM to hold the carpet down.
The double sided tape will keep the carpet down, but not for long. The best thing to use is to turn to the use of specialized carpet glue.