Question: I am in the process of renovating my bathroom. My old tub and drum trap type drain have been removed. In order to replace the drum trap with a new P- trap drain, my concrete slab had to be broken up in a 9″ x 14″ section.  How does the opening in my concrete slab relate to termite control/prevention? Should the slab be filled in again or is it best to leave the space open for termite inspection?

ANSWER: If possible, it might be best for the future to leave this area accessible; there may come a time when the soil there will need to be treated for termites.