This topic is about a concern with the Hollister Lock ’n Roll one-piece pouch, specifically the model with an integrated filter (#8574). The user experienced a severe leak through the filter area during the night, which soaked the bed. Since this product is part of a patient-assistance program, the user is worried about its reliability if such leaks are common. Here are some helpful tips and insights shared by others:

1. **Contact Hollister**: If you encounter a defect, Hollister is willing to accept unopened boxes back and provide replacements.

2. **Cover the Filter with Tape**:
- Many people use 3M Transpore tape or any waterproof medical tape to cover the filter.
- Some users routinely tape every new pouch to prevent clogging or leaking.
- Hollister also provides swimming filter-cover tape that can be used.

3. **Consider Pouches Without Filters**:
- If your preferred model offers a no-filter option, you might want to switch to that.
- Hollister 18004 is a no-filter option but requires manual "burping."
- The Convatec Natura two-piece system is reported to be virtually leak-free.

4. **Add Your Own Vent**:
- Instead of relying on the built-in filter, you can attach adhesive EZ-Vents, which are available online and considered more secure.

5. **Monitor Fill Level and Body Position**:
- A pouch that is very full or becomes horizontal while lying down can cause liquid to seep through the filter.
- Some users find it helpful to sleep partially upright to keep output away from the filter.

6. **Cutting Your Own Flange Opening**:
- If you need to cut your own flange opening, using a round hole-punch can provide a cleaner edge than scissors. This is useful for prepping multiple Convatec wafers at once, but it works only for two-piece pouches.

7. **Defective Batches**:
- Occasionally, defective batches occur. If you experience sudden and severe leaks, request replacements instead of assuming all Hollister bags will have the same issue.