I highly suggest adding a gravity-fed water system. They are easy to install, and cut down on daily work. You just fill the bucket every week or two instead of filling water bottles daily. Also make sure you never let the food run dry, because the rats will eat their way out to try to find food. I had a raccoon come into my garage one night and eat all of the food off of the hoppers. The next morning the rats in that tub had eaten through and escaped. I keep my food hoppers full at all times.

Good luck!