Sewer sleeve

Alan

an Indiana campground requires, per law, a sewer sleeve when getting full hook up. What is a sewer sleeve?
since this is IN, this may be a Verna question.

Nomad

The only thing I can think of is a donut that was discussed fairly recently.

Sharon_is_SAM

http://www.amazon.com/gp/product/B0006MRS4I/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B0006MRS4I&linkCode=as2&tag=cool-amazon-20