If you are in the US, check with your local government office and/or university. In Wisconsin, the university has extension offices and you can take your pressure cooker in to get it tested. They will tell you if it is safe, and if not what you need to do to make it safe. They do this as a free public service
I liked it. IMO season one is worth a watch. It tells a complete story but leaves things open for season two. Sucks that it’s cancelled. 🤷♂️