When you use the coolant spray or mister and the coolant is caught in the drip pan does your spray pump suck up the coolant out of the chip tray and reuse it, if so is there a strainer on the suction line to strain out the metal chips. I have seen pictures of the sprayer pointing to the cut but I haven't saw the pump hooked on the machine and the suction line, or read how this is accomplished.
I'm not Larry, but generally a coolant sprayer or mister is used in conjunction with air like this Kool Mist System.
Kool Mist System
The coolant is in a rather small container and there is an air connector in or at the nozzle. When it sprays or mists, there is very little remaining of the coolant after it hits the tool. I use those kind for milling machines or drilling. There is a little drip left over, but not like what a coolant pump on like a saw would create.
Most saws have a chip tray that has a hole in it with a screen over it. The coolant strains through the screen and returns to the coolant reservoir where the pump is. It is then used over and over again.