We just got back from our New Mexico adventure and the bottom fell out of the temperature here last night. Luckily got in on Saturday evening and had Sunday to winterize. Everyone was aware that the temps were going from 60 to -1 Sunday to Monday so when I looked I only had two gallons of antifreeze. Went to town (our town has a population of 500) and all the antifreeze had been bought and back ordered. So I blew out all the lines, drained the HWH, bypassed it and put what I had into the lines. I worked with my coat off on Sunday, highs in the 60s. Monday am, we woke to 12 inches of snow and a -1 temp. Today it will be sunny but the high is expected to be 25. So glad I had at least two gallons. Ran it through all the lines and hopefully enough in the drains. Going to the "city" on Thursday and plan to buy more then but have my fingers crossed that I was able to do what I could.
John originally convinced me that you should do both, blow out the lines and pink stuff.
I am now a big believer in that.
By Friday the highs will be back to the 60s and the lows in the 30s. I will find out then if my two gallons were enough.
I have my fingers crossed.