Brown Gray Water in sink??
So we came back from a 7 hour drive towing our trailer. The Black water was empty and the Gray water was empty. We placed our Kuerig in the kitchen sick to secure it. When we arrived home, the bot...
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Gotta be the trap. Could have even gotten some positive pressure in the drain system due to wind/air currents blowing in the vent pipe. Kinda sounds like coffee dumped down the sink mixed with other gunk in the trap.
