Quote Originally Posted by redshepherd View Post
If the UTH takes up about 1/3 of the tub, it's totally fine. It's okay to attach the adhesive side. Make sure you have a thermostat regulating the heat pad!
If you don't have a thermostat, you run the risk of the mat getting too hot and melting the plastic or, worse, burning your snake very badly. Any heating device should have a thermostat to help regulate it. There are some decent ones available through Amazon: https://www.amazon.com/MTPRTC-Contro...ant+thermostat