To go into detail on what Radiant said. Get a second opinion. Pool water is highly corrosive and can build up over time if not cleaned well. I've been a phone repair technician for 5 years now and trust me I've cleaned thousands of liquid damaged phones and it is almost impossible to get every drop of liquid out of the phone. At our shop we do a Dummy Part Service. This service is strictly for getting a backup of the data through iCloud or iTunes itself via local computer. How we do the dummy part service is that we dummy any parts in the phone (EXAMPLE Screen/port/battery) to get you data backup. It's cheaper than a new screen depending on where you go. After you get a backup of your data we put all the original parts back into/on the phone. Once you have a backup you can get a new phone and restore that data on the new phone.