I have a freon leak. Where might be the most likely location? on 1993 Buick Roadmaster

When I charge my air conditioning system, it gets cold for about a day and a half and then nothing. I'm fairly certain it's a leak, as this has happened several times even after replacing compressor. Thanks.

Asked by for the 1993 Buick Roadmaster
have system recharged with freon and leak dye to determine source of leak
thank you
1 more answer
The two most common leaks are a bad compressor and a evaporator. Either one is expensive. It might be time to consider a different vehicle.