What are the thoughts on putting antifreeze thru the lines, then draining or using the pump to remove most of the antifreeze? There wouldn't be any water left in the lines, only a small amount of ant...
Don't see any harm in it. But I don't see any gain in it either. Only takes a minute to open the low point drains when you are ready to use the trailer again. Actually if you drain it out and the remaining drops of antifreeze dry out, like the mess you would have in the sink if you do not clean up the antifreeze, it may actuall take longer to reconstitute the dried up antifreeze and get it flushed out of the lines.