My dd has been on the sensor for over a year. We have always had good luck with tegaderm to keep the sensor on (sports, showers, etc). However, the pool this summer is a whole different story. When she goes swimming, she's in the pool for HOURS and eventually the tegaderm just gives up. Her skin is sensitive to mastisol, so that's not an option. What are you guys using that works when submerged for hours on end?! The sensor ends up coming out and not only are we wasting sensors, but it's absolutely driving me mad! I need her to have the sensor on in the summer now more than ever with all of the crazy activity of an 11 year old. HELP!