This may not be exactly to the point, but I have a 6 gal Tote-N-Store and a 10 gal Tote-Along on those "not good for anything serious" wheels. Most of the time we go out for 2 or 3 nights without dumping, so they don't get a lot of use.
At my age I am not anxious to lift them or maneuver them when full, and the connections lend themselves to spillage, so I rarely use them (but we have the deep well with a waterproof pan in the rear of the Ody which is very helpful).
I am planning on more extended trips again, so a solution is coming into focus: Add a 20 gal. or so fresh-water tank to the back of the Honda for resupply and do the following: for years I have used a Flo-Jet mascerator unit (good unit and very fast) to do dumping through a 50-foot black garden hose at home. It could be used to pump the waste into the two tanks I already have (I'd just leave them in the trunk area). Keeping them from overflowing could be a challenge, but a single larger tank could be the solution if that is a problem. The fittings are already on the portable tanks, so the mascerator could quickly be repositioned to reverse the flow at a dump site.
I have a spare, but functional water pump and a white fresh-water hose and I may fit it to the new fresh-water tank to resupply the Burro
tank. There are 12v outlets both next to the trailer dump valve and one in the rear of the Honda, so that could work out.
The result is that I might be able to dump and resupply the trailer without 1) moving the trailer, and 2) lifting any tanks.
As you know, the dump valve on the Burro
is none too high, so while this is OK at the average dump site, it presents a problem when trying to fill a portable tank. This proposed setup would make that a non-problem. Both hoses could be left attached to the tanks in the Honda, so spillage might be minimized.
If there is something I haven't adequately considered I'd like some feedback on this setup. Added weight
is a potential problem, but I don't see doing this while doing serious mileage with these tanks full. I have about 70 lbs left on my tongue weight
limit, but the rear airbags level things out, so that part is not a problem since the weight
would only be on the Honda wheels.
This may work for me, since I have the pump, hoses, and mascerator already. The mascerator, water pump, and a serious fresh-water tank would add up to a tidy sum, but in my case I'm mostly making use of what is already there.
Incidentally, after 13 years of a cheap dump hose I got a real one, but I sawed off the extra length on the elbow to the dump hole that I've found in the state parks but left it long enough to push into the pipe without floating around. That left it short enough to fit all of it into one of those 4x4 vinyl fence post things without a problem. An extra elbow will do for the rare times we use a full hookup and need a firm screw-in connection.