I’m not sure I understand what you mean, do you mean keeping bugs away from your sink?
assitant
Be nice to your drain and keep it clean!  There are two main methods of clog prevention: 1) prevent things from going down the drain in the first place; and 2) use a sink-stopper or a garbage disposal to help prevent things from moving through the pipes.
assistant
How do I keep bugs from coming through the drain?
user