tlw3989, Howdy;
Not sure how your's is set-up, it may be the kitchen
sink vent. open one tank valve at a time to see (smell),
which tank is the offender. If it's the Galley tank look under
the sink to see if there is a short section of pipe sticking up
into the space maybe 1.5ft. it should have a slotted cap
on top with a spring loaded rubber disk inside, that's
the Galley tank vent. the rubber may have become mishapped
and not sealing properly.
If that is ok, then put a 'trap' in the sewage hose itself.
Some folks use a empty coffee can. The smell could have
been the sewer itself venting thru your tanks and out the
vents in the trailer roof.
hankaye
__________________
Striving for a less complicated life since 1949 ...
Home: 2008 Cougar 278 RKS
T.V.: 2004 F-250 4X4, Level III BulletProofed , Detroit Tru-Track Differential (915A550)
Dog: 2006 Border Collie (Rascal) aka Maximum fur dispersal unit. (08/04/2006 - 12/16/2017) RIP.
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