Originally Posted by NorthwestBBQ
That may be all the rage in backyard BBQ but I would never do that in competition. Old coals do not burn evenly.
But he mentioned it was at home, and "neighbor kids" might give it away, its not a comp. I and most on here with WSM, and BGE's shut all the vents and they go out pretty quick.
As for the yard, ash when mixed with water is acidic. Thats why ash left in smokers gets wet and results in rust throughs. Acidic can be good for your lawn actually or it could be bad. We spread ash 2-3 times a year around our Azaleas and Rodedendrums, and they are thriving!