To start, I think the bartender who talked to the previous poster was misinformed. I've been coming here for a couple of years and they absolutely use separate water for the pasta. I eat here once a week at least, get the pasta almost every time, am full blown celiac and haven't gotten sick yet.
I also asked about the fries for my daughter once and they knew it was a shared fryer, so they do tell you when it can't be done.
When in doubt always ask a manager. They know best!!