From excavation to complete there are many factors that play into how long it will take to install an in-ground pool. Vinyl liner and Liner-less application pools such as the Evolution that use panels generally take less time (Normally 7-10 days). While gunite and concrete pools require forms to be set and then must be sprayed or poured and generally take about 30 days up to several months to complete.
Inground vinyl is better, their is less exposed part to the oxigene, therefore, last longer.
Have you considered measuring exactly where it is to go then manufacture it from fibre glass outside the pool install the plumbing into it and drop it into place. that way you can easily remove when you wish and make repairs when needed.
Don't do it. Too many possibilities for leaks. Get Fiberglass or vinyl pool, learn to install that instead.
If you are talkin about a vinyl lined pool the answer is yes you can.
thousands of dollars
what you can do in this situation depends on what is under the vinyl liner now.
Need to rephrase question.
It is highly unlikely.
No. Replace the liner.
An inground pool is typically lined with either gunite (concrete), fiberglass, or vinyl. Gunite and fiberglass are roughly the same cost, whereas vinyl is considerably cheaper. With the lower price comes less durability, as vinyl lining has to be replaced every 8-10 years or so, whereas the other two can last for decades. Vinyl is also much easier to puncture or otherwise damage. That said, many people still prefer vinyl inground pools due to the lower cost.
Pool with a vinyl liner.
it cost from $15K to $100k depending on what you want and where you are.