I carry 30 feet and a 45 clear coupler of good quality sewer hose. Have had an occasion twice that needed longer than 20 feet. Carry the cheaply that came with the tv for dump station, it compresses to 3 feet or so. In addition carry 50 feet of white water hose and 50 feet of grey hose and a y connector for the supply valve. Always lay out grey hose for grandkids and the campfire in case of an emergency! Otherwise I use grey hose for black tank flush.
Marriot2 on Wheels 2017 Flagstaff Classic 832 OKBS
2013 GMC Denali 6.6L 2500 HD DMAX w\Alison Trans
Pepper Pomeranian rescue 101 days as camping buddy
Days camped in FR, 2011 = 20, 2012 = 57, 2013 = 59
... 2014 = 39, 2015 = 52, 2016 = 68, 3 more planned