Sewer hose length and support recommendation

As the owner of a 45' coach, I can honestly say the correct length of sewer hose necessary for that size rig, is one that will connect from the sewer connection at the campground to the sewer connection on your rig.....:B:B....if your rig is like mine, you'll have a macerator and it comes with it's own hose and will stretch about 28'. Add a 150' garden hose to that and you're up to about 180'....perfect for that camping spot within 150' of a sewer cleanout or a restroom with flush toilets.....just sayin....Dennis