People please be aware that if you live in a Termite prone area and have a swimming pool you could have a problem. They are known to eat through the liners and also the in ground plumbing. We are restricted by Rules and Regulations to apply liquid chemicals, termite monitors are available to help with the situation. I know of 2 people who filled the pool in after going through 2 or 3 liners. If you are buying a home with an in ground pool, you should ask some questions. Diatomaceous earth could be one possible solution to this problem before the liner is installed.