I have a 2016 16 TBS with 4 wheels. When looking under the TT I saw there were only 2 braces on the black water tank. I am assuming it is the black water tank as it is the last tank. There was a brace on the door side and one in the middle. Next to the drains the was no brace. Am I missing a brace ??
If you really only have 2 straps, you are missing one. However, I'll bet you have 3. The strap nearest the drain is hidden higher up in a "L" formed in the tank to make room for the drain outlet. Look all the way up over the drain.