My routine is the same for both foam and wool, new and used. I prepare a small bucket of cool water and add a small amount of DP pad cleaner or Optimum Power Clean-just a weak solution. As I am finishing up with a pad I toss it in the bucket to soak. I use a weak solution and cool water so any adhesive is not degraded.
At the end of the day I squeeze all pads under this solution to remove as much polish/LSP as possible and set them aside, when done I dump this solution and prepare a stronger solution and one by one work each pad in this solotion, squeezing never bending the pad, then a rinse under running cool water and squeezing out as much water as possible. When all are done, I give em a spin on the rotary or DA to get ot the remainder of the water. After that they are placed on a vinyl covered rack, velcro up, for the final drying. Then they go to the appropriate Plastic container for storage. Some place each pad in their own zip-loc bag. Hope this helps!