I can help, but I’ll need a bit more detail (or a photo) to be sure.
When you say “these things,” do you mean small worms, insects, or something else? And are they:
- crawling in the bowl water,
- floating,
- or coming out of the drain?
After rain, a few common possibilities in toilets are:
1. Drain fly larvae (very common)
Tiny translucent/gray “worms” that come from organic buildup in pipes. Heavy rain can push them up.
2. Earthworms
Sometimes rain floods soil-connected drains or cracks, and earthworms end up appearing in toilets.
3. Sewer worms / tubifex-type worms
Thin red or brown wriggling worms that live in dirty, oxygen-poor water in plumbing systems.
4. Cockroach nymphs or other insects
Less common, but heavy rain can force insects up through drainage systems.
If you can, upload a clear photo or describe:
- size (mm/cm)
- color
- whether they move actively or just drift
- where exactly they come from
That will let me narrow it down quickly.
