Abstract: A system for reapplication of termiticide substance to the fill dirt underlying the foundation slab of a building at potential termite entry points is installed prior to pouring the slab. The system has a single, endless unbranched emitter circuit of apertured, flexible tubing, disposed upon the fill dirt at the perimeter edges of the slab and around the openings in the slab where bundles of utility connections penetrate the slab. The emitter circuit is fed by a redundancy of open-ended unperforated trunk lines, connected to the emitter circuit at spaced apart intervals, to equalize distribution of termiticide to all soil areas adjacent the emitter circuit, the despite possible breaks or clogging in one or more trunk lines or in the emitter circuit. The trunk lines run from the emitter circuit under the slab, are bundled, and run through a single channel drilled horizontally through a foundation block, to the outside of an exterior wall of the building.