I got the booklet ($4.95) from
http://www.aboutrving.com/store/wrin...ee-rv-laundry/ about doing laundry in a combo unit. I've read it but haven't had a chance to try most of it because we're just leaving on a long trip at the end of the month. She has been using hers for a long time and has some good ideas. I'm going to try them, even if they do sound a little unconventional, like putting a set of sheets in all at once.