So I went to three sites for the perfect proportions of salt, sugar, and water (plus their recos for add ins like peppercorns, bay leaf etc.)
I used 6C water, 1/2 C salt, 1/2 C brown sugar. Boiled it ( not too long either so I wouldn't lose volume), then added in the salt and sugar, and simmered until dissolved. cooled it and then added pork loin. let it sit for 4 hours.
It sucked. Where did I mess up?