Alde Glycol Fluid Swap in a 2017 Cirrus 820 Truck Camper

Описание: This is a documentation of the process I used to swap out the glycol fluid in the Alde heating system in my Cirrus 820 truck camper. This is not an official or recommended method, but merely a documentation of how I did it.
The manufacturer is recommending that owners of campers with Alde heating systems swap out the glycol from the old yellow "Century" glycol fluid, to the new blue "Rhogard" glycol fluid, because the old fluid is causing corrosion in the heater's aluminum parts.
I had no experience doing this before, so after looking at all of the information I could find online about how to do the glycol fluid swap, I came up with this fairly straight-forward method.
Here is a list of the tools I used for this process:
1 five gallon bucket of Rhogard Ultra glycol concentrate
1 clean empty 5 gallon bucket and 2.5 gallons of distilled water to cut the concentrate in half for the recommended 50-50 glycol/water solution
1 dirty bucket to collect the old waste glycol and some empty milk jugs for transport to the dump's waste liquid collection
a garden water spigot and hose
a small transfer pump (I used "Drummond" brand 1/10hp from Harbor Freight)
a 4ft section of garden hose for the transfer pump's intake
20ft of clear plastic tubing 5/8in OD (outside diameter) 1/2in ID (inside diameter) cut in half in 10ft sections
two 3/4in to 1/2in hose barbs
one female garden hose adapter to 1/2in hose barb
an air compressor (I used "Pittsburgh" brand 12v mini compressor-tire inflator from Harbor Freight)
a pair of hose clamp pliers
other tools as needed such as a drill and proper bit to remove the basement panel and heater's expansion tank, and a vise grip pliers