Reddit reviews Hypafix Dressing Retention Tape: 2" X 10 Yds Each

3M tape is called Medipore. I have the 1" wide roll. When the time comes to get another roll, I'll go with the 2" wide roll. It would help having more overlap.

http://www.amazon.com/gp/aw/d/B000O0FBL4/ref=mp_s_a_1_2?qid=1405647568&sr=8-2

Hypafix is about the same. The only difference from the 3M Medipore is that the Medipore is perforated and the hypafix, you have to cut it with scissors.

http://www.amazon.com/gp/aw/d/B000CDP1I6/ref=mp_s_a_1_1?qid=1405647645&sr=8-1

Finally, pink tape. I found it's technically called Hy-tape.
Same thing as far as the width of the roll, 2" is better (imo).

http://www.amazon.com/gp/aw/d/B0002Q0AIY/ref=mp_s_a_1_1?qid=1405647972&sr=8-1

Let me know how things go. I'd like to get back into swimming some more myself. Eventually I'd want to get back to scuba diving, but I'm not sure how well that would work with a wetsuit.

I forgot exactly what people called them but I searched and found a few options. Any sort of waterproof dressing would work.

http://www.amazon.com/Smith-Nephew-OpSite-Flexifix-Transparent/dp/B000PQAYZK
http://www.amazon.com/Hypafix-Dressing-Retention-Tape-Each/dp/B000CDP1I6/ref=cm_cr_pr_product_top

I also found this blog which gives another option and reminded me of another problem... Itching. I've never gone past 14 days because by then the itching is too much for me. Also, the tape I use if left on for too long will cause a rash. Of course YMMV but I like to think I don't have overly sensitive skin... http://sixuntilme.com/wp/2013/07/24/keeping-the-dexcom-stuck/