with the use of skilled professionals to dive the pool and pressure test the lines
Definitely has a leak! Best to put the snorkel on and try to locate the leak by looking for tears in the liner.
The best sites are InGroundPoolDesign and MyDreamPool, where you can either research yourself, or talk to consultants and construction experts to find the best inground pool designs that suits your needs.
are you a pool dealer? What state are you in?
Justin Bieber has a inground pool
They don't make them for in ground.
Any of them will If they have a problem with it they wil up the cost of the insurance, the best way to find out is ask them.
use something called soda ash you can find it at a pool or spa store