Join us under the van today as we upgrade our Ford Transit self-build campervan with a full DIY underslung waste tank installation. This video covers everything from inspecting the underside of the van, drilling the mounting points, bolting the tank into place, and wrapping it in insulation to help stop it freezing during winter camping. If you're working on a DIY campervan water system, planning a Ford Transit van build, or researching how to install an underslung waste tank for your camper conversion, this step-by-step guide shows the full process in real-time. No shortcuts, no hiding the awkward bits — just practical van build work and the kind of install footage we all wish existed when we started. Perfect for anyone doing a self build campervan, upgrading an older waste setup, winter-proofing their rig, or learning more about the plumbing side of van life. _________________________________________________________________________________________________ We picked up our underslung waste tank from www.TheCampervanShop.com. They’ve got pretty much everything you need for a self-build, water tanks, plumbing stuff, electrics, insulation, all the fiddly parts you never realise you need until you’re halfway through a job. If you’re doing your own DIY campervan build or planning your next upgrade, have a browse. It’s just an easy place to grab proper campervan parts without spending hours hunting around. __________________________________________________________________________________________________ #underslungwastetank #diycampervan #selfbuildcamper 00:00 - Intro 00:40 - Why Upgrade the Waste System 01:40 - Where To Mount The Underslung Tank 03:38 - Thecampervanshop.com 04:43 - Mounting the Underslung Tank 07:34 - Fitting the waste kit to the tank 10:35 - Drilling the hole for the waste tank drain pipe 15:17 - Wrapping the underslung tank in Insulation Wrap 16:01 - Final Setup & Test 16:52 - Outro