keurig used to clean coils.

[XrisBee]

I used one of these to clean my coils.

http://www.amazon.com/Keurig-K-Cup-...98903309&sr=8-3&keywords=keurig+k+cup+adapter

I put the coil into the hole at the bottom and let it flow. You need to get rid of the cross hatch of plastic at the bottom. Worked quite well.

 

[Cloud Junky]

That may be an overshot, but if it works for you that is good for me. I just torch and rinse coils.