SWimming Pool advice

[oxo1947]

Taking over a small apartment block with swimming pool , both in disrepair.   The swimming Pool pump and filter & much everything will have to be replaced, nothing is working at the moment, and much of it missing. They are (whats left) underground next to the pool, I have an area near the pool where I can set up a new system, or just replace the old system where it is. Salt water sand filter. I have had conflicting advice on this, some saying the underground is better others replace it all above ground. My knowledge on anything to do with swimming pools is a little less then Zero,  

The pool is about 69K liters.

 

 

litters.                                                                                                                      

[Bagwain]

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