Is the skimmer plastic? Does it have a black bottom? If so, there is a kit for this. Check out black bottom skimmer repair - search.
how do i find and repair leak in gunite pool with water in it?
How can I do some home toilet repair? I have an upstairs pipe that is leaking underneath the toilet.
First you have to identify the fluid that is leaking then locate the source of the leak before we can tell you how to repair it.
Some typical radiator repair jobs are leaking hoses, leaking radiators or loose connections.
Gunite is a mixture of water, cement, and sand applied through a pressure hose to produce a dense layer of concrete. This is used most often to line tunnels and repair structures.
Replace the leaking part
You will be better off replacing it that trying to repair it.
You need a repair shop
stuff it with paper
Replaster!
same that was removed
Replace the part it is leaking from.