Lol. Also mounted tanks on cut rubber shower liner pan to keep tank abrasion down.
May need to slip some VHB tape between Jack and frame.
I would be a little worried that water would splash up from the tow vehicle and find it’s way under the shower liner. I would much rather see some sort of little feet clipped to the tank bottom or ring of split tubing pushed onto the bottom of the tank.
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So many modifications...so little time.