Cockroaches are among the most unwelcome household pests. Because they seek food, water, and shelter, kitchens, bathrooms, and drains often become their favorite hiding places. Social media is full of “one-step” tricks that promise to make cockroaches disappear forever, but the reality is that long-term control requires a combination of good sanitation and proven pest prevention methods.
Here’s what you should know.
Step 1: Do Cockroaches Really Come Up Through Drains?
Sometimes, yes.
Certain species can travel through plumbing systems, especially if:
- Floor drains are rarely used and dry out.
- Drain covers are damaged or missing.
- Pipes have cracks or gaps.
- Moisture and food residue collect inside drains.
However, cockroaches also enter homes through:
- Cracks in walls
- Gaps under doors
- Windows
- Cardboard boxes and grocery bags
- Plumbing and utility openings
Step 2: Does Pouring Powder Into the Drain Eliminate Cockroaches?
Many viral posts show people pouring salt, baking soda, detergent, or other powders into drains.
While cleaning drains can remove food residue and unpleasant odors, there is no strong scientific evidence that pouring common household powders into a drain will permanently eliminate cockroaches.
If cockroaches are living elsewhere in the home, they are likely to return.
Step 3: Keep Drains Clean
Regular drain maintenance can make your home less attractive to pests.
Simple Drain Cleaning Method
Ingredients
- ½ cup baking soda
- 1 cup white vinegar
- Hot (not boiling) water
Instructions
- Pour the baking soda into the drain.
- Slowly add the vinegar.
- Allow the mixture to fizz for 10–15 minutes.
- Flush with hot water.
- Repeat weekly if needed.
This helps clean away organic buildup but should not be considered a cockroach treatment.
