Side note: there is a certain amount of "break-away" built into this system. If there is a collision with a rock or road debris, a stout attachment would rip up the van frame, which in the case of Promaster, is very thin. I'd rather sacrifice the tanks and hangers and preserve the van frame.

Irene likes the sound of the heat tornado.😁 Pistol misses her morning George treats. Carey On!

This keeps getting better and better. The thought and planning behind everything you do is amazing!

I have a similar set up with two gray tanks under my ProMaster. My tanks are also set up to be able to combine two tanks into one. But I have one key difference. I have a valve in between the two gray tanks that I usually leave in the closed position so the tanks will not blend it together. I have one gray tank that handles only the shower Wastewater, I call this my light gray tank. The other gray tank handles all the smelly kitchen waste water. I call this by dark grey tank. The advantage to my system is I can trickle my light gray tank in the campground without it emitting a smell and annoying my neighbors or camp host. The light gray tank is 8 gallons and 10 gallons in the dark gray tank. I almost never completely fill my dark gray tank in one trip. But I can take lots of long showers and not fill my light gray tank if I discreetly drain it each night. If I fill up one tank and I am unable to dump it for whatever reason I can pull the valve in between the two tanks and combine them into a single larger tank.

I finally got my humble road fix! Now I’ll get through the holidays without any stress 😁 Merry Christmas to you and your family 😊

Merry Christmas to you and yours!! Love your videos. Love your attention to detail. 2020 is going to be a great year!

Thanks for another fun and informative video. I always hate it when they come to an end!!! Thanks!!!! Happy Holidays too. Take a bit of time off for your family and your little dog!!!

Nicely done George. Great to see Vans 03 and 04 already in the Shop! Looking forward to the end results of the Vagabond Van 😃

I’ve missed my Sunday morning George fix. I’m better now. 😊

Another great vid 😁 Keep them coming George

He is so brilliant! I really appreciate these super informative videos. Much thanks!!!

Have a great Christmas George - and all the best to you and your family for 2020. Hope the van orders roll in nicely over this coming year.

Love the way you think everything through and look for the most elegant solution. Also entertaining. And glad you’re posting again.

Awesome and amazing build George! 😍

Merry Christmas and a safe New Years George! Enjoy the holidays and the break.

That explains where you’ve been....in training!! I’ve been missing your videos-so glad you’re continuing to develop your genius!!

Great video as usual George. And wow at the site of the other vans lined up!

George I just wanted to wish you and your family a Merry Christmas and a Happy New Year it's always a pleasure watching you work I know it's kind of always be quality thanks for what you do

This is so great! You get it man, you get it

Awesome video, happy holidays and Merry Christmas!

Thanks for the update, George, great work. The erector set goes "underground"! :-) Hope you get some rest over the holidays. All the best to you and yours.

You guys had a BUSY couple of week .... Welcome back, you were missed ! GREAT video George .... Looks like the new Makita cut-off saw suits your metal cutting needs PERFECTLY :) :) :)

I love your videos...and the way you explain your marvelous work! I can't wait to get my van and pay$ you a visit George😁

great videos it like watching a very clever spike milligan, thanks so much

♥️...Humble , that brain of yours just does not stop 😊. Genius.... 🎄 MERRY CHRISTMAS ,

3:25 I love that you showed us your thinking. If I made a video of my van build right now, most of the video would be that. And it would have to be timelapse if I wanted it to be short enough for KZfaq. Oh, and then there's my Amazon shopping spree over the last few months. Come spring, I start building.

It is nice to see holding tanks installed in a Promaster.

Merry Christmas!

George you are so brilliant!!

Hi George, I’m guessing that you intend to have the tanks empty during sub-freezing weather. The expanding ice would most likely crack the tanks. Not to mention there would be no way to drain a 10 gallon block of ice. I tend to agree with an earlier subscriber’s comments. Think about corrosion protection, maybe even some gravel guard type paint to absorb some of the stone strikes on your metal work. Here in Canada they use a metric shit ton of salt on the roads. It will eat up that untreated threaded rod in a four or five years. Always entertaining, keep up the good work! You are going to need some employees soon with all these vans showing up at your shop. Merry Christmas, Steve

Another great video!

The waste tanks are hung under the Promaster with care, with hopes that the new owner would like them there. :) Love your builds; first class all the way!!!

Oh and obviously great episode as usual George, I feel like waiting for the new episode of the George-Show (thats what I call it in my head, haha) is all I do on KZfaq

You should have many more subscribers. Love your work

HEADS UP, RV WORLD: Humble Road has transformed in front of our eyes from a backyard build to a viable company!

Happy Holidays!

Watching from Belize, while dreaming about my van conversion.

I was just about to type a comment about the fridge, then l saw that you are still fighting with it 🤣

Dunno about the gray tanks, Tony. You've got mixed metals, new holes into the chassis, no extra corrosion protection and lots on inaccessible places inside the metalwork to trap salt debris. I'm thinking 5-10 years down the line that will be a problem unless you add anti-galvanic compound on the nuts and corrosion inhibitor everywhere else. The lawn irrigation systems are also normally drained before winter, they are designed to be used in freezing weather. Some other types can actually withstand multiple freezes. (Pemex?)

I did not know about the water tanks being filling up in equilibrium....brilliant...thanks

Via Vegabond, the end is near. Looking 4ward 2 the final product. U R kickin' butt, George.

Love the placement explanation :)

Just a thought for your tanks.. you could use aluminum, or steel, angle to support the tanks. Also if you want, you could take some 14 gauge plate to create a shield for them. Just a suggestion. Love the videos 👍

Amazing. Just crawled out from under my van and was thinking how 2 tanks would work out in the space much better than one...I didn't want to sacrifice the ground clearance of 'spanning' a floor rib with a larger tank. (#%$@ing brake system!) this has re-assured my thinking. Definitely going with 2 tanks and a connection. Thanks George!

Gooood Morning, George! You've been missed! All is well: Breakfast with the Beatles show on KOZT (it streams, btw), and a video from George. LOVE Sunday mornings!!! Still working on my side job to fund my Humble Road van dream! HAPPY Holidays to you and yours!!!!

Bravo!

So, you got it covered.....and as Barry mentioned, insulation, you mentioned Unique! That is key, Who, What, Where and HOW! Always a Pleasure!

your are a best my man i love ya your style your ideas a excellent mentor for a builder like me

I love you videos and they are very entertaining... and you are correct the roof sheet is probably 27 or 28 thou while structural is likely 31 or 32 thou (0.032"). But why are you using a twist drill to drill the holes? They are not designed for sheet and even if you pilot them you will be compromising the edge (straining) these strained areas will corrode preferentially. Use a sheet metal drill bit as a pilot (roofing places sell them. Then increase the diameter using a step drill and mark the correct step with some paint or fingernail polish. Don't bother saying the strength of the rods... 60,000 psi is the breaking strength in tension. If the rods fail before the riv nut rips through the sheet metal, they will fail in bending. Having continuously threaded rods places the thread of the root at the highest bending stress so 500lbs/rod may be a safe static load in pure tension but now you drive at 60 mph with loaded tanks and you have a massive bending stress. And the "moment" will transfer to the frame through the riv nut. pulling down on the back side and up on the other. It would be better to use a strap system like the one that holds your battery down with pivots at the point of attachment to the frame so that long rod cannot bend. The fatigue life of threaded rod even if it does not corrode is horrendous. I would suggest the simplest solution if you do have problems is to replace the threaded rod with unthreaded rod and cut threads on the ends. Or just replace the whole structure with stainless steel straps in both directions with a piece of rubber between the strap and the tank... most gas tanks were attached this way (look at any semi and see how its tanks are attached or even passenger vehicles)... straps are flexible so will not transfer a bending moment to the structure. I am not trying to put you down. I have worked testing automotive steels for 30 years and have taught strength of materials for many years... this is not common knowledge so hence my long comment. Automotive vehicles and every component that goes into them goes thru FMEA (failure mode effects analysis) ...that is the design engineering team assume every part will fail.... then ask how many ways will it fail? what is the likelihood of each failure, and what are the consequences of each failure. They assign values from 1-5 to each of these and find the most important one. They then address that mode of failure and work on to each failure that would reasonable occur in the life of the vehicle. You have suggested that the tanks could get banged up on a rough road but they should tear away without damaging the structure. I think your most severe failure would be losing a tank or pieces of frame and rod while on the freeway at 60 mph. What will be the root cause of that failure? I would think that it would be the choice of threaded rod fastened solidly to the frame. I am only trying to be helpful and give you and your viewers a glimpse into the reliability considerations that go into the thousands of pieces on every vehicle on the road. Please keep doing your videos and giving a forum for discussion and continuously improving! take care and stay healthy!

You are most genius maker of rv

I love watching your videos! It takes me back to when I was addicted to Norm Abrams' "New Yankee Workshop." I was so sad when they stopped running it here in my area. I learn so much from watching you, just like I did back in the workshop days. Keep 'em coming. :) Oh, and I really love that slow, sexy, jazzy music you play when you are showing us a part of the install or a tour. It's perfect!

Great video, and some good info. My thoughts are that using stainless straps around the tanks, and attached to those hangers would gain you 2 1/2 inches of clearance, and would be plenty strong enough. The tanks could be wrapped with insulation to help stop them freezing, or have 12v thermostatic tank heaters fitted.

KZfaq is obviously screwing with the algorithm again. Even though I have the notification bell selected for this channel, I was not notified of this upload and it never came up on my feed. The same is happening with other channels I subscribe to. Anyway, another great video George! I hope you're still building vans when I retire in 12 years because it's either you or Advanced RV and I'm pretty sure I'll never be able to afford one of their rigs lol.

Yeah I’ve gotten my Humble Road fix again. I was sure missing your channel. Wow 3 vans in the shop! Can’t wait to see what’s what’s up with all your future builds. Merry Christmas to you and your family. 🎄🎁🚐❤️

Hi, I love the idea of mounting tanks underneath the van, freeing up a lot of much needed space. However, I am concerned about loss of clearance, vulnerability to damage and freezing. Can you comment further on how you hope to mitigate these possible issues. Cheers.

For my Promaster build I ordered a tank available in Europe, it comes form fitted to fill the spaces between the under carriage beams and includes hanging brackets with no drilling needed. It has very good ground clearance. I’m using it for a grey water but it is black and can be used for fresh water, it comes with hoses as well. Easy to find on Promaster accessories European sites. CAK tanks LTD.

Still working on that fridge 😂😂 🔨

You crack me up! 😂🤣🤣🤣

I would fly to where ever your at to do my build

The tubing that goes six inches underground may in fact depend on those six inches of dirt to protect them from freezing and heat. Just a random thought for whatever it's worth, doesn't necessarily mean it's not fit for this purpose.

Feckin' brilliant, and perfectly sound logic all around once again.

It’s my guess that many people don’t know that this is volume x weight x velocity. And that most of the tankage is mounted the same way with unpainted angle. Your super strut is a great solution, I would favor a welded structure that is bolted in two axis not everything in shear. And I would have back up straps. There is two materials not sure if your aware of - one is Dibond, second is pvc sheet, Sintra. Dibond is two thin layers of aluminum sandwiching a polypropylene core not glued formed, second is a cellular pvc product . Both can be fabed and Cnc cut, glued screwed, and have resistance to bending and low mass by volume. I use the Dibond it’s FR rated. I build and Design with same principals of design for service in The event of failure. Avoid failure with system design thinking first. Consider rockwool for insulation, and wool felt, it’s naturally fire retardant, and highly resistant to mold. I’m on the west coast so we don’t compete, I’m willing to share. Thanks for your videos

What stops the water tanks from sliding into the brake cable? I saw you used some angles to prevent rocking forward and back but there wasn't anything for the sides at 1:00 in?

I'm curious how you plan to insulate the tanks. Hoping they are not going to be left exposed, with no insulation or Webasto heat.... Because that would mean a significant restriction on travel plans when Temps drop below freezing!!!!

I hope you spray those steel parts with undercoating or something!! That hardware is going to rust and get ugly. Also cover the nuts with removable caps or something.

I'm going to use your video to put a grey tank under the van. Thanks for this. One question, how do you know when to empty the tank? Any sensor you know of that would tell you when the tank is nearly full?

Hi! Love the videos! I bought a brand new 2020 promaster and I want to install a wabasto but my Ram dealer said it would void my warranty. Do you have any advice around this? Or alternative that don’t need hookup to the fuel line? Thanks!

Have you considered adding heating pads to tanks under van to help 4 season protect them from freezing? Also any pipes that may contain water under van. Something like Winnebago Revel pr Boldt? Great videos!! Thanks for sharing.

Hi, What's the name of 1/2" pvc board you used for the bath enclosed? Please. A link of where do you buy them?

❤❤❤❤❤

Great ideas here! Curious why you didn’t use 80/20 for the tank frame?

Why not put some thin sheet metal pans on the underside of the tanks to protect it from small rocks and such?

if I won the lottery I'd pay George to build a tricked out van for me

Question: (Im almost done with the pre-thinking part of my conversion, going to get started myself soon) how do you make sure that the connections between the two tanks don't break/leak when the tanks get all kinds of banged uo under the van?

If I had the $$$ I would buy you a car lifter so you could stand under it when you are doing all the underneath additions. I just found your YT and love watching all your projects. My bucket list includes the ProMaster build and live out the rest of my healthy days touring the country. My kids think I'm goofy at 67 and think a woman is a target for miscreants. If I die doing this all I can say is "what a way to go!" I wish I could get you to do some custom work for me. God bless you, Sir! You have my mind working overtime. :)

It's the music from "whatever happened to pizza at McDonald's" !!

And the reefer removal battle rages on...

Where do you buy these tanks?

George, now that you are a qualified Webasto technician, could you please make a video about the fault or error codes that pertain to the Webasto Airtop series please?

Do any of the rear windows on the new 3500 window van open ?

What are the tanks size you use for the pro master?

hung my watertanks same way, linked them same way.

How fast does the sink and shower drain with 3/4 hose?

I am glad that I found you on the internet. Do you think that it isn't necessary to isolate the grey and blackwater tanks? I am thinking about installing an incineration toilette, what do you think about such a system?

For the holding tank frame, what about rust and/or corrosion from salt brine during travels in areas with snow?

How do you vent the tanks so they don't become air bound or suck in when being emptied? Relocating one in my class B and it has a roof vent, but I can't use it due to location. Any help or ideas appreciated! Thank you!

May I ask? When the tanks holding liquids, especially the one inside, are half full, do the liquids oscillate and make a noise when you hit the breaks, or are there some structures inside them that block oscillation?

How do you keep the grey water tanks from freezing over in the winter since they’re located outside the van?

Is it necessary to have a gray water holding tank? What about letting it run out on the ground? If it becomes a problem put a bucket under the van to cary the water away or have a hose to cary it away. This will save space & weight.

What size tanks are you using, and what section are you placing them?

THis may have been asked already but I didn't see it. Wouldn't having the heater underneath the refrigerator cause it to work harder to cool the food inside?

I have heard that people run the diesel heaters on kerosene also. Is that true?

what size tanks did you use for the grey water?

I really enjoy your videos Sir, bit I've noticed you never incorporate foam spraying as your insulation choice, is there a reason?

How do you prevent condensation on the windows without a fresh air intake ?? Especially when camping on colder climates?? Your vans are built meticulously.

George.......where are you?? We miss you!

Wait a minute!!??!!?! Those tank supports are not 80/20 extrusions! I'm kind of having a moment here that you went with something else. ;-) But, that something else appears to be galvanized steel. Looks good, strong, and certainly versatile.

I have also seen Radiant Floor heat in van builds. But have not researched the pros and cons, I'm having Humble Road Fantasies of a Cargo Trailer Conversion.

What size tanks did you use. Supplier?.

ha ha ha ha , Nice Thinking Mode