What temporary action is suggested for seldom-used floor drains to address potential low-level cockroach activity?

Answer

Running water down the drains nightly for a week

To potentially flush out very low-level activity in infrequently used drains where American roaches thrive, it is recommended to run water down them every night for a period of one week.

What temporary action is suggested for seldom-used floor drains to address potential low-level cockroach activity?
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