Do your Brute containers bow a lot with water inside? I normally use a glass tank for my water change mixing tank but just recently switched to a Brute tote. I read a lot about how these are commercial grade and supposed to be really strong... I notice that the sides of this thing bow A LOT when filled with water... I have another Rubbermaid clear one I use for ATO that barely bows when filled with water... Anyone ever have a Brute container burst on them??