This topic is about finding reliable convex ileostomy pouches that can stay on securely, even when you're in water. The person asking for advice has both a urostomy and an ileostomy and is looking for a pouch that won't lose adhesion, especially since they plan to attend a pole and aerial retreat that includes using a hot tub. They have tried several products without success and need a pouch with specific features due to their high, watery ileostomy output. Here are some helpful suggestions:

1. Consider using the same brand as your successful urostomy pouch, but in an ileostomy version. Adding flange extenders and an ostomy belt can provide extra security when you're in water.

2. Reach out directly to multiple manufacturers to request samples of convex drainable pouches. Calling them might give you more options than filling out web forms. Some companies to consider are:
- Coloplast Assura line
- Hollister
- ConvaTec
- Safe n Simple
- Nu-Hope
- Cymed
- Marlen
- Salts Healthcare
- B. Braun
- ConfiPlus

3. A specific product recommended for use in spas or baths is the B. Braun Flexima Convex one-piece drainable pouch, product #42720P. Users have found it to have reliable adhesion even in hot tubs. Using flange extenders can help create an added seal around the edges.

4. Try ordering and testing ConfiPlus "Stoma Pockets" as another option for a convex drainable pouch. You can find more information at their website: https://confiplus.com/confiplus-usa/

5. Before attending the retreat, test any new pouch system by soaking in a bathtub to ensure it can withstand prolonged immersion in water.