Being relatively new to kegging, I'm wondering if my line cleaning regimen is up to snuff. Here's what I'm doing. When I finish off a keg, I clean it and then fill it with idophor solution. After it sits for a while I pressurize it and dispense a half gallon or so through the tap. Then I pop the keg off, leaving the solution in the line till I tap the next keg. (and toss the first glass) Is this kosher?