Lynnmor wrote:
If you leave the gray tank valve open, then any leakage from the air admittance valve will have a full time stink coming from the septic tank.
Can you tell me more about the air admittance valve? I thought the grey and black tanks were unconnected except for being drained from adjacent valves. But now we have a sudden and mysterious black tank smell after six years of full-timing. How does the black tank smell get into a greywater air admittance valve when the grey valve is left open?
We dump 2/3 full and run a Lil Stanker inline vent on the black tank. Weve had zero trouble until the grey valve was left open continuously. I just don't understand how the smell from one system gets into the other system. I thought the dump valve manifold separated the two completely. What am I missing?