my '17 305RL had the two labels crossed - dealer caught it when it was in for fridge service.
I think HEPA valve keeps smells in tank ... replace, I would or p-trap it
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RAM 22' DRW 3500 Crew LB 40 gal reserve tank / RETRAX Bed Cover / 2020 373RD HC / IS / MOPEKA Tank Monitor / Furrion Side&Rear Cameras
Slide Toppers / EMS-HW50C / Sailun 85's
3rd AC / Dometic 320
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