Quote:
Originally Posted by Chava61
Occasionally I see a roach in my bathroom tub probably that came up from the drain. So besides nailing the drain shut I am not sure if it is completely preventable.
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No chava,
They don't come up from the drain because there is a trap always filled with water otherwise there would be sewer gases coming into your apartment.
Roaches CAN swim, but won't unless forced. Likely in bathtub because there are droplets of water it can drink, even if it has to go into the drain a bit to get some.
The need for water is why roaches are usually a kitchen/bathroom problem.