So, just took a long hot shower. The trick was putting a bandage over the whole area, and then taping it down. Not a single drop off on the sensor.
Also, the Tegaderm is still doing an amazing job holding it on. So far, the past 2 days I've been within 5 points of every double blind stick test.
I just used Opsite flexifix around the transmitter. In the 13 days I wore it, it did not pull up at all. I spent more than an hour in the ocean, and did a mile in the pool. Although the initial ocean visit kind of messed up the rest of the day, with readings ranging from 387 to 38 and each time my glucometer readings were right around 115. The pool session was better and did not mess up the sensor it just did not read for the time I was in the pool. I spent a week on a cruise with my family and had no issues with the G4 it is a fantastic tool.