www.purposeofcockroaches.xyz - The thing that gets annoyed when the heavy rain and flood is the appearance of a cockroach. It came not one or two, but a lot.
That's a bit of experience ever experienced Indah Wardhani from Kelapa Gading, North Jakarta. Once observed, it turns out the cockroaches came from the sewer in the bathroom.
how to prevent the cockroaches coming back?
According to Chairman of the Indonesian Toilet Association (ATI), Naning Adiwoso, the inclusion of cockroaches easily to the sewer is because you immediately throw water into the city/river channel. During the rainy season, the water in rivers and drains is overflowing. In that condition, cockroaches will flock to safety through drainage pipes. They then go out and go straight to your bathroom.
Also, the inclusion of cockroaches can be caused by a sewer that is not covered correctly. The solution put the floor drain with a hole that is not big. Or, you can buy floor drain without holes but can be opened and closed. If not used, the tool is closed, and when you want to drain the water can be opened.
Indeed, floor drain like this is quite expensive. However, its use is effective in preventing cockroaches from entering.
related: the purpose of cockroaches