Undercarriage Axillary Water Tanks
I am trying to maintain some storage in my 144" Sprinter build. I need a large lithium battery and SMB puts that inside due to lithium freezing. I am hoping I might be able to drop part of this into the place where the spare normally goes, but I want 600-900 Ah, and am doubtful it could fit there even if SMB is willing to place it there.
I also want to carry extra water. SMB also keeps the water inside the van so it won't freeze. I do not plan to take the van to places that will have freezing weather. We will use a D5 for water heating and will have en exterior shower at the rear doors. I am considering placing an auxiliary water tank beneath the van and pumping more to a small main interior tank if necessary when we are doing extended remote camping. Several of us are considering aux fuel tanks on our Sprinters and I need to think about where I would put an aux fuel tank and an aux water tank in addition to this large lithium battery so that I can balance the weight.
Any feedback you can give re. manufacturers, quality, size, location, mounting methods, transfer pumps, etc. for aux undercarriage water tanks would be appreciated. This is for a 144" Sprinter, but any advice is appreciated. For the sake of gaining interior storage, I might even consider removing the interior water and going only with undercarriage water. This would lower the center of gravity-an added bonus.
Also, a couple of things I don't know that would be helpful are: What are the capacity and dimensions of the different water tanks SMB offers? Where is the exact location of the diesel tank on a 144" Sprinter? I can't find a diagram anywhere on Google. Anyone having a diagram to post would be super.
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