You can save and re-use the coolant in a drain pan. It doesn't have to be pitched.
You may want to filter it though - easiest way to do that is use a funnel to put it in a jug, then put a rag over the jug opening and tie a string around it.
This will strain it out while you pour it back in.
Last edited by Greywolf; 11-10-2007 at 03:51 PM.