On Jay Bob's recommendation I crawled under there and put a hose on it and opened the block drain. The hose barb actually turns with the nut and since I had a rather stiff hose that was curled a bit I was trying to keep it on there and rotate it as I loosened the fitting. Finally I opened the fitting and at that moment the hose fell off and coolant came spewing out. I had to get my head out of the way quick, and when I did I could no longer see the fitting. I struggled to put the hose back on to no avail, and the remaining coolant went down my arm, into my shirt, into my hair and all over the driveway. The only place it didn't go was into the drain pan.

So after that I refilled with distilled again and drove it, so I still got my triple flush. The final drain came out clear so I put the 5 qts of concentrate in and topped off with distilled water. Drove it hard with the heater on, let it cool and topped off again, about 4 oz.

So I won't really say the drain plug was easy, and I won't say it was clean, or quicker. It did get more of the old stuff out though.

I will try a citric acid flush later, not sure how much I want to spend on the car at this point. I noticed a very light film of what appeared to be soot that came off when I rubbed my finger inside the coolant reservoir, and the last Blackstone revealed my potassium to be at 22ppm with the average for the OM603 at 11ppm. With my #14 head I am mildly concerned so I need to monitor this before spending the time and money I had planned for this car.

__________________
Brian
87 300Dturbo 180K #14 head still running R-12 SOLD 12/2017
02 F350 Powerstroke 180K
05 Chevy Express 1 ton w/Royal Utility box 120K
08 Infiniti FX-35 40K
15 Golf Sportwagen TDI 35K
10 Sprinter 3500 chassis with a Class A Winnebago on it. 56K