Or just avoid it altogether , we do not use the toilet or the shower and I chose not to deal with dumping the black tank. we use the campground facilities. the bathroom makes a great closet btw. In fact after 4 years with our hw277, the plastic wrap is still on the toilet.
HTT: "EscapeII" 2016 Shamrock 23WS (current)
PUP: "Escape" 2010 Rockwood HW 277 (gone)
TV: "Bruce" 2011 Dodge Durango V8 Hemi Crew
Just us gals (me, Sis and our daughters)
Traveled 19520 miles and 209 nights in 7 years and counting