one of the lesser expensive options is the blue portable gray water/sewage tanks for trailers, RV's etc. Nice sizes, you could cut out a section for access and then screw/expoxy an aluminum plate in to cover it. Big filler cap on these things to.


Camping World

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"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro

The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels