I sat in on Dr. Perkins presentation on cleaning tubing in 2014 and found it to be very informative. My take home was that there was no significant difference in bacterial levels in tubing cleaned with chlorine bleach, peroxide, etc, or plain water. Further, there was no difference between tubing cleaned with any agents vs. uncleaned tubing. I am still amazed that anyone uses any type of chemical to clean tubing when there is no evidence that it does anything.
That said, I still go through the physically demanding process of running high pressure air & water through the lines after every season. I guess old habits are hard to break...
300 on vaccum
300 gravity tubing
200 buckets
100 hilltop acres
16x20 timberframe sugarhouse built in 2010
3x10 Leader max flue & revolution pans w/ Inferno arch - 2013
1998 Kubota M5400
Northwoods Farm and Forestry on Facebook.