The topic at hand is about dealing with leakage issues in a Hollister 2-piece ostomy system, which consists of a pouch and a wafer. The main concern is leakage occurring at the connection point between the pouch and the wafer, even though the fit around the stoma seems good and the pouch is properly clicked into place. Here are some helpful insights and advice shared by others who have faced similar issues:

1. **Possible Product Defect**
- Some users have experienced faulty batches of Hollister 2-piece pouches where the rings do not seal properly. Contacting Hollister can often result in replacements.
- Switching to a different brand, like ConvaTec, or using a one-piece system has resolved the issue for some.

2. **Testing the Seal Before Use**
- Inflate the pouch with air using your mouth, a blow-dryer, or by lifting the tail, then close the tail and press on the bag. If no air escapes, the seal is good.
- Perform this test before applying any lubricants or attaching the appliance.

3. **Ensuring Proper Coupling Technique**
- Begin snapping the pouch onto the wafer from the bottom and work your way up, ensuring you hear or feel a complete 360° “click.”
- Use a fingernail or a hand-held mirror to check for any gaps around the junction.
- The bag should not rotate once fully engaged, and the two plastic rings should be flush with no visible space.

4. **Timing and Stoma Output Control During Changes**
- Consider fasting for 10-12 hours or changing the pouch first thing in the morning to minimize output.
- To thicken watery ileostomy output, incorporate foods like bananas and potatoes into your diet or use loperamide to reduce leaks during changes.

5. **Filter Issues**
- Filters on Hollister bags can clog or leak. Covering the filter with tape can prevent seepage.
- Some users prefer non-filter bags and manually “burp” them to release air.

6. **Accessory and Belt Considerations**
- Avoid overtightening a 1-inch Hollister belt, as it can bow the wafer and break the seal.
- Support garments, like the Nu-Hope support belt, can help keep the pouch flange pressed firmly against the wafer.

7. **General Leak-Prevention Habits**
- Take your time and re-check the coupling after every “burp.”
- Changing the pouch mid-week with a full rinse can reduce mess and allow you to inspect the wafer seal.

These tips and insights aim to help manage and prevent leakage issues, ensuring a more comfortable and secure experience with your ostomy system.