Disinfectant! 84 disinfectant! Dilute it. Let's go !
It is best to wash the floor drain and other places with boiling water, first with a large pot of boiling water.
Then use diluted 84 solution-this can't be boiled water-and then rinse! !
Generally, the floor drain is waterproof around, so don't worry about the problem. Rinse thoroughly, and then ventilate to dry.