Abstract: A quick release locking drill rod includes a hollow sleeve having opposite first and second end portions and components for quick release locking the first end portion of the sleeve of one rod to the second end portion of the sleeve of another rod. The first end portion of the sleeve of one rod receives therein the second end portion of the sleeve of another rod. The quick release locking components connect the first end portion of the sleeve of one rod to the second end portion of the sleeve of another rod and include an internal cross pin and pair of diametrically opposed L-shaped slots. The internal cross pin is disposed in the first end portion of the sleeve and is spaced inwardly from the open first end. The internal cross pin spans the first diameter and has opposite ends attached to opposite sides of the first end portion of the sleeve. The diametrically opposed L-shaped slots are defined in respective opposite sides of the second end portion of the sleeve.

Abstract: A method of retrofitting an underground water drainage sump system to below a floor slab for protecting the floor slab includes the steps of forming a sump hole below a floor slab of a building, drilling into and removing soil from below the floor slab so as to form a plurality of lateral passageways extending from a central location relative to an outer perimeter of the floor slab, extending the lateral passageways outwardly at two different levels and lengths and alternating therebetween to and beyond a footer at the outer perimeter of the floor slab, inserting a plurality of perforated collection pipes into the lateral passageways, placing a perforated drum into the sump hole such that inner ends of the perforated collection pipes are adjacent to the perforated drum, filling the sump hole around at least the lower portion of the perforated drum with drainage stones, placing a sump pump into the perforated drum, connecting the sump pump to a discharge pipe for transporting the drainage water from the perfor