I also have one school with 7 floor pockets. For the ones that work, I just take a male pin connector with no wiring in it and plug them into those females inside. There's 3 circuits per pocket.
For the ones that were beyond repair, I just took the time to lie on the floor and remove the old plate that had the 3 circuits on it, disconnected the old plate with the chassis mounted females, and installed short pigtails down to the circuit wires coming from the dimmers. I also put those 'deadhead' male plugs that I spoke of earlier into these females. Well worth the time and effort...now they are all working when I need them, and all the polyurethane in the world can't (or shouldn't) affect them.
For the ones that were beyond repair, I just took the time to lie on the floor and remove the old plate that had the 3 circuits on it, disconnected the old plate with the chassis mounted females, and installed short pigtails down to the circuit wires coming from the dimmers. I also put those 'deadhead' male plugs that I spoke of earlier into these females. Well worth the time and effort...now they are all working when I need them, and all the polyurethane in the world can't (or shouldn't) affect them.