Blowing out water lines

I have blown out the water lines in our various motorhomes for almost 30 years. Prior posts have described the procedure. Just take your time and you will be fine. For the past 10 years I have also removed any water in the traps with a turkey baster with tubing attached and just suck it out. As long as all the holding tanks are dry and clean you won't have any issues. Only antifreeze I use now is a little bit in the toilet bowl so the seal doesn't dry out. If I recall, many years ago it was an RV dealer that told me to just blow the water out. Besides, that's what folks do with underground sprinkler systems up here. They do need a lot more air volume though.