A patch MAY work FOR A TIME, but it is less than ideal. If the placement of the
skimmer was truly the installer's fault, I make him replace the entire liner
instead of doing a patch job.

Consider the downside: if the patch fails the water level will drop until it
reaches the leaky part of the patch. If that leak is below your skimmer lip (of
course it will be) AND your pump is in the skimmer box AND you do not have a
bottom drain feeding your skimmer box, you will probably end up with a burnt
out pump.

I have a personal crusade going against contractors & tradesmen of all kinds
who do shoddy work just because they don't care enough to do a job right.
That's just my opinion. Good luck.

~ Gary