Dometic 300 toilet with the dreaded internal leak to allow waste to pool inside the outer bowl and smell

I have the Dometic 300 and it is less than a year old. It has a urine smell all the time, no matter how well we clean it. I ran up on some information on a past recall of 300's where the inner seal lets water come from inside the bowl to the outer bowl and settles there until it evaporates, and

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Dometic 300 toilet with the dreaded internal leak to allow waste to pool inside the outer bowl and smell

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Dometic 300 toilet with the dreaded internal leak to allow waste to pool inside the outer bowl and smell

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