Check Vents

[Pete Masterson]

One of the 'cautions' I received from friends and others with more RV
experience than I was to avoid driving down the road with windows or
vents open as it causes a reduced pressure (due to the Bernoulli
effect) inside the coach. Under those circumstances, it's possible to
pull sewer gasses past the water in the p-traps, resulting in
unpleasant odors in the coach.

You might check your black and gray tank vent pipes to ensure that
they're not blocked. They should provide sufficient air flow to
preclude odors from entering the coach during a tank dump. (I haven't
experienced any odor in the coach during/after a dump. I have gotten
some slight odor (most noticeable in the bathroom) when I've
forgotten to close the center roof (Kool-matic) vent. I've not run on
the road with windows open, except for the driver's window for a
short period as I approach a toll booth, etc.

I do get occasional odor from the Microphor toilet -- sometimes, it
seems the chamber below the bowl doesn't (fully) clear after a flush
cycle and some odor can result in the next flush cycle. Fortunately,
it's only mildly annoying, not a serious problem. (I plan to spend
some time studying the Microphor documents after we return home from
this trip, so I better understand how the toilet works and if it is
working properly.)

Pete Masterson
'95 Blue Bird Wanderlodge WBDA 42
aeonix1@...
On the road at Lockhart Texas



On May 27, 2007, at 12:06 PM, Rob Robinson wrote:

> Thanks for that Pete. I think I might check out these vents to see
> if I have
> a stuck one. I do sometimes get a smell when dumping the tanks and
> always if
> I leave a window open as I'm going down the road.
<snip>