I have a 1970's house. A few years ago while cleaning the basement floor
drain I accidentally kicked the cleanout plug into the drain. It sank and
couldn't be retrieved. In the summer I now have to leave the drain cleanout
partially open to allow the air conditioner condensate to drain. This
sometimes creates odor problems on windy days. Is there a recommended
process for removing an obstruction in a floor drain? I'm guessing that
this is not an unusual circumstance.

Ca****cher