winterizing question Low point drains open or closed

path1 wrote:

capndan771 wrote:
Leave open in case there is a small amount of moisture in the lines. I am assuming you are not using an antifreeze after blowing lines out. If using anti-freeze, of course low point drains would be closed.

Op here...Correct, no anti-freeze in lines, just little down each drain. So no water to freeze in lines. Was really thinking about bugs or anything that might harm system

Thanks

What if you taped a Baggie around the line end? Would catch any drops of water well away from the drain - but would keep out wasps/mud daubers, etc that are looking for a place to live out the winter?