Hi,
I hate leaks...they are such a pain in the ass!
The above post is correct, you have
to wait to see where the water level drops stops.
Once it stops. Buy yourself a leak kit. (Colored Dye)
Then do the army crawl around the edge of the pool
slowly squirting the dye around any joiners, plumbing etc.
The dye will get sucked right into the leak.
Try the most obvious spots first...and make sure the
pump is off. the water has to be perfectly still.
So take your time and try not to rush as you'll
stir the water up too much and it wont work.
Once you have found the leak you can add a clear
vinyl patch to the area. This will be included in any
good leak test kit.
Good Luck..
Regards,
Michael Silvester