My mom and dad gave me there 18' intex pool. Well as far as they know it didn't have any leaks. Well it has a pin hole leak on the side pretty much on the bottom. I've heard that you can fix it without draining the pool. I need to know what I need to do that. I can't aford to drain it. Any suggestions will help.

Just use the included patch kit that came with your Intex pool. I've used it underwater and it works fine. If you don't have a kit, you can buy one at your local pool dealer. Ask for one that works underwater.