I recently bought a new home that has a hot tub on the deck. I know nothing about getting one of these things into shape for use, but I had some questions. It was half filled with brackish water and had stood idle and turned off for almost two years. We decided we wanted to see if it works so we drained it and washed it. When I flipped the breaker and the switch it seems to be working, but I wanted to know if there's anything I definitely need to do before I fill it with water and test it to see if it works. Is there anything that would increase my chances of this thing operating properly that I should do at this point?
We don't have any manual, but the tub is probably around 7 years old.