The topic at hand is about finding effective ways to remove mucus from a rectal stump, particularly through irrigation methods. This can be a concern for those who have had certain types of surgeries and are dealing with mucus buildup. Here are some insights and advice on this topic:

1. Foley catheters are not recommended for removing rectal mucus. They are designed for urine, have a small lumen, and can easily become clogged.

2. Using a narrow Foley catheter in the rectal stump increases the risk of colon perforation compared to devices specifically made for bowel irrigation.

3. Standard enemas are the safest and most commonly used method for clearing rectal mucus. However, they may not be effective for everyone.

4. A do-it-yourself irrigation method is shared with caution and should not be attempted without medical supervision:
- Measure the length of the stump to avoid perforation.
- Choose or modify catheters to prevent them from penetrating too far or damaging the walls.
- Control the water pressure to be just enough to dislodge mucus without harming tissue.
- Use two catheters:
- One with a drilled end-hole to flush the far end of the stump.
- Another with side outlets, rotated while withdrawing, to rinse the side walls.
- Perform the procedure in a bathtub, standing or squatting, and connect the system to a shower hose with an on/off tap for flow control.
- Daily irrigation for about a month can help clear mucus until it becomes thin, odor-free, and manageable with incontinence pads, after which irrigation can be stopped.

5. If enemas are not effective, commercial colonic-irrigation clinics might offer a professional and safer alternative.

6. Equipment that might be useful includes Coloplast Peristeen Rectal Catheters, product #29123, which have dual water entry and an inflatable balloon. The tip can be adapted for a home irrigation setup.