And it might just be the screens. When I have a good dock hose
available, I'll stick the hose right up against the vent on the outside
and push water back down the vent line. It blows any salt buildup off
the screens. I've also noted that the screens will turn green and
crusty just from the environment or even gasses that are being vented.
It's possible that the hose is clogged with detritus, or even little
hunks of toilet paper. Those vents have nipples on the inside of the
hull, and you can pull the hose off.
*I offer this advice with a strong warning:* You can get fittings at
many hardware/plumbing/garden stores that take a standard garden hose
end and fit various hose sizes. (I have one that fits my primary bilge
pump hose, that I occasionally connect to give it a high pressure flush
to remove sediment.) You could connect one of those to your vent line
and back flush into the tank. *NOTE:* 1) You should loosen the main
tank inspection port or you will blow up your holding tank up with
horrible consequences. 2) City water pressure from a garden hose may
be too much for your hose and fittings. I don't want to do the math,
but I think if you take 40 PSI from the city and push it through a 1/2"
vent hose the pressure increases big time. So open the faucet up just a
little bit and listen through the inspection port.
Yes, it will get stinky, but stinky goes away sooner or later.
Wal
On 11/4/2013 8:02 PM, Rick Brass wrote:
As I recommended before, look for a plugged screen in the vent on the
outside of the hull before you look at anything else. Unless you don't have
spiders and wasps where you live.
--
s/v Stella Blue
www.wbryant.com
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