Some of the things my T1 friend has used for pump sites and CGM sites as adhesives change and things are sticking:

Alcohol wipe,

IV prep wipes: https://www.amazon.com/5459421200BX-Prep-Antiseptic-Wipes-count/dp/B007AZ3A9Q/

Skin Tac wipes: https://www.amazon.com/Torbot-Adhesive-Barrier-Latex-free-Hypo-allergenic/dp/B00JWSDHJC

Tagaerm (can cut to size, put below or over sites): https://www.amazon.com/3M-Tegaderm-1624W-Transparent-Dressing/dp/B001PLYV5I/

Sometimes she gets a weird batch and calls the company and they will send replacements too.

All part of that permanent part time job called T1.

I use SkinTac before putting on my CGM and then cover the CGM with a large patch to help protect it from water. This combination has worked really well for me.