Last week, DD started swimming with a team. They practice for an hour three timeS a week. Since we began using the Dexcom last summer, DD has swum in pools, lakes, andthe ocean. But now, it seems as though the minute she enters the water, the Dexcom loses the signal. Once it picks up again, it is highly inaccurate, which has not been our experience with the CGM generally or with other swimming. (Though this pool does seem more heavily chlorinated). We then spend the night with hourglasses and question marks and calibration prompts, and it seems by morning to "regain" it's accuracy. I've stayed at poolside with the receiver. I would have expected DD to be in range a decent amount of time. The times we have wrapped the transmitter (on her arm) in Vetrap did not seem to make any difference. When we get home after swim, I have been removing the transmitter and wiping it with an alcohol wipe and letting it dry...still no difference. I have not tried covering the whole thing with Tegaderm--guess that's next. I have not tried simply removing the transmitter (in the hope that while it will at least avoid some of the inaccuracies after swimming). Also, the transmitter is five months old... could this be a sign that it's time to replace it (our first one lasted 8+ months and seemed to work okay the whole time)? Any insights would be appreciated.