I am trying not to scream, too late...We had a semi-inground pool 15x30 installed last June looked good at first glance, when we went to vacuum for the first time liner got sucked into vacuum. Pool co. was suppose to come out before we closed it, said there was a void in the ground, and they would fix it. A year later, now in litigation over them not coming back or fixing problem. Another pool installer came to correct the problem, had to fix a support and found out pool not truly squared to 15x30, more like 15x29.9. New liner was installed anyway, now there is sand lumps and excess liner in areas around the pool. Called them back to come and correct, said they will come back and fix, and will order a custom liner, and now because they feel there is a drainage issue, causing wrinkles in liner, possible high water table, they want us to get drains installed and will be putting a vermiculite base under pool when they re-install. Please anyone who has knowledge with this problem, please give me some thoughts on why this is turning into such a nightmare! I am beside myself as to if this 3rd go around will work, and I am losing faith in anyone's ability to correctly rectify this!