Are RV sewer hose supports necessary?

I've never used one and I can't see the need for one. For proper tank usage, you should never leave a drain valve open for constant drainage, even the gray tank. Let the tanks mostly fill up then dump all at once to flush out debris, soap, particles.

I don't have one. I only connect my sewer hose when I need to dump and that's the day I leave the site, even with full hookups.

I don't use "hundreds" of gallons of water a day while "camping" either. I never even hook up to the city water line, even in full hook up sites for a long 4 day weekend.

I bring my own water and like using it as needed. Do I need to take a 10 minute shower while "camping" like I do at home every day??? no... I like being dirty once in a while and roughing it while "camping". It is my time to do that... ha, ha... I don't have kids so that helps a lot too I'm sure! Wife and I do just fine with each other!

Everyone does what they need to do while "camping". What I do or what you do, it does not matter... It's what works for you while you are out doing what you want to do in the wilderness..

I LOL to myself at folks that I see hooking up their sewer line even before they have unhitched their trailer! But, that's the way they setup camp for themselves, so that's what works for them. I'm sure I give a lot of 'observers' something to talk about with the way I setup my rig or do things during my stay. Who cares? I'm doing what works for me and that's all you need to do too.

Good luck! Mitch

I've never used one. But I don't keep connected either.

Some campgrounds require the supports if you remain connected. In almost 20 years I have never used one and don't have one. Worst case buy it when needed at the camp store.

In my experience I have found that in a majority of RV parks the septic receptacle is higher than ground level, thus allowing the hose to fill when draining and making it very difficult to drain completely into the drain receptacle.....not to mention increasing the potential for leakage and spill. I carry an inexpensive plastic support that collapses to a rather compact size for storing.