Leviton 8599 GFCI Receptacle "hot gfi trips" Questions

...Hot tub with connected GFI wire was emptied and cleaned out and filled; now the GFI trips when pluged in, and will not turn on! Either the GFI is bad or it is tripping because there is a short in the ...

...APPLIANCE IN ANY 3 RECEPTABLES IT TRIPS GFCI AND SHOWS ON TESTER HOT GRD REVERSE how old is it ? GFI's internal parts wear out,can't be fixed.all three receptacles are being protected by the one ...