Hi there, I have a design project that is very similar to a humidifier tank as in this example. In this example, the clear blue tank is bonded to a white base so it is removed and a fill cap underneath can be used to fill the tank with water. Specifically, what is the best way, or what is the most typical way to bond the clear blue shell to the bottom white base to form a watertight durable seal. I am assuming some type of glue/adhesive, or an alternately more complex approach could be a ultrasonic weld. Curious if anyone has experience with this type of product intended to hold water and can offer advice on bonding technique and possibly an adhesive recommendation. Thanks!!