Towing with Full Water Tank

Obviously, would not normally want to do this, but is the weight distribution (thinking anti-sway etc) of the R-Pods (177 in my case) designed so the weight is still appropriately tongue heavy?  The water tank is behind the axle.

I've even weighed our trailer at the two wheels and the combined measurement was remarkably close to what I got at the truck scale.  I attribute the difference to the difference low gravity where I live.  We've mined so much here that the earth is much less dense as compared to the location of the scale where gravity tends to be high. 

We discussed something similar in this thread.

At some point, you are gonna have to weigh your trailer.  I weighed my rig as normally loaded, ready for a trip.  As I pulled away, I got the actual axle weight.  Then, I came back and weighed my SUV. That let me calculate the tongue weight for my R-Pod.  Once I got that, I crawled under it and started measuring.  Shockingly clean for a 4-y.o.  You can get the center distance for each tank by using the corners the tank has.  From the measurements I made I built a spreadsheet that will calculate tongue weight with various loads in various places.  One hundred pounds of food/clothing in the front can counterbalance a lot in the rear.  If you want it, send me a PM.  You'll have to adjust the distances for your 177.  If you start with a base loading that you always use, then the spreadsheet will give reliable changes to that base case.  And, you only need to weigh the 'Pod once. 

I had no idea a tongue scale could be had as low as $70. 

You're joking, right? How many folks on here have a F250 super duty they tow an rpod around with? Let's please get this right so we don't kill someone.

First, trailers with too low tongue weight in general are subject to sway. It doesn't matter if the weight is low or high, its the front/rear distribution that's critical.

Look at this video:

Second, there are documented cases of rPod sway at tongue weights around 10% of trailer weight or less. I did a post on this a couple of years ago.  

Third, rpods are light trailers, and 30 gallons (250 lbs not 240 btw) is a lot of weight in one. In my 179 moving 30 gallons from the fresh to the gray tank changes the tongue weight by 3%, which is a lot considering that the target range is only 10-15%. 

Fourth, even if you have a heavy tow vehicle, you really don't want your trailer fishtailing around on you driving down the road. 

So, yes, getting this right is a big deal, unless you enjoy the idea of winding up facing backwards on a freeway with a semi heading straight at you.