Heating 3-5% vinegar and soaking and running through it works well too. Maybe not as well as Ketchup but it'll work.
runhard, trainhard, raceEZ
keg 1-Graham Sander's Tropical Flower Wit
keg 2-Yooper's Fat Sam - I highly recommend it
keg 3-Yooper's Fat Tire
keg 4-XXX Stout
Fermenter #1-Graham Sander's Tropical Flower Wit