Pool Leaking Water

[Russo]

Hi, I live in Central America, have rented a house with a pool that now leaks. Would like suggestions on fixing or temporarily fixing the problem.
-filled pool for 7 days , each day leaked down to the jets.
-pulled jets off and there was dirt around one jet and another two have cracked concrete.
-pool is concrete with tiles
-15yo
-not my pool, would like to make usable while I live here.
Q: Can I pull the jets off and patch or reseal with concrete? Without having to dig around the pool?
Any help would keep us cool!

I have photos but don't know how to add them?