Peggie,
As I mentioned before, bronze is absolutely out of the question with a steel
hull. They create a huge electrolysis issue which causes both valve failure
and steel corrosion throughout the hull. I think using plastic within the
sanitary system and 316 at the hull is the best compromise. The reasoning is
that the stainless will be continuously flushed with seawater and only
sometimes exposed to waste. The valve which will be continuously exposed to
waste will be plastic.
Steve

"Peggie Hall" wrote in message
...
Steve Lusardi wrote:
Peggie,
The dilemma is the Lloyds certification for thru hull fittings, which
call for fire proof valves against your years of experience.

If you must use metal for your thru-hulls, use bronze. It's a lot more
resistant to urine than SS...almost bullet proof. In fact, the best
high-end manual marine toilets--Blake, W-C Skipper, Groco K etc--are
bronze "thrones."

--
Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://shop.sailboatowners.com/boat_odors/

Hokay...sometimes you just have make compromises, and this seems to be
one of those times.

Peggie



Steve Lusardi wrote:
Peggie,
As I mentioned before, bronze is absolutely out of the question with a steel
hull. They create a huge electrolysis issue which causes both valve failure
and steel corrosion throughout the hull. I think using plastic within the
sanitary system and 316 at the hull is the best compromise. The reasoning is
that the stainless will be continuously flushed with seawater and only
sometimes exposed to waste. The valve which will be continuously exposed to
waste will be plastic.
Steve

"Peggie Hall" wrote in message
...
Steve Lusardi wrote:
Peggie,
The dilemma is the Lloyds certification for thru hull fittings, which
call for fire proof valves against your years of experience.
If you must use metal for your thru-hulls, use bronze. It's a lot more
resistant to urine than SS...almost bullet proof. In fact, the best
high-end manual marine toilets--Blake, W-C Skipper, Groco K etc--are
bronze "thrones."

--
Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://shop.sailboatowners.com/boat_odors/




--
Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://shop.sailboatowners.com/boat_odors/

"Steve Lusardi" wrote in message
...
Peggie,
As I mentioned before, bronze is absolutely out of the question with a
steel hull. They create a huge electrolysis issue which causes both valve
failure and steel corrosion throughout the hull. I think using plastic
within the sanitary system and 316 at the hull is the best compromise. The
reasoning is that the stainless will be continuously flushed with seawater
and only sometimes exposed to waste. The valve which will be continuously
exposed to waste will be plastic.
Steve


You don't actually expect any woman to understand electrolysis and how it
effects various metals placed side by side in salt water do you? It's
obvious she's clueless by her reply that totally failed to consider the
consequences of bronze and steel mated together.

Have you considered monel? Marvelous stuff! I understand it is compatible
with steel being an alloy nickel and copper with some iron.
http://en.wikipedia.org/wiki/Monel

Wilbur Hubbard

On May 15, 6:35 pm, "Wilbur Hubbard"
wrote:
"Steve Lusardi" wrote in message

...

Peggie,
As I mentioned before, bronze is absolutely out of the question with a
steel hull. They create a huge electrolysis issue which causes both valve
failure and steel corrosion throughout the hull. I think using plastic
within the sanitary system and 316 at the hull is the best compromise. The
reasoning is that the stainless will be continuously flushed with seawater
and only sometimes exposed to waste. The valve which will be continuously
exposed to waste will be plastic.
Steve

You don't actually expect any woman to understand electrolysis and how it
effects various metals placed side by side in salt water do you? It's
obvious she's clueless by her reply that totally failed to consider the
consequences of bronze and steel mated together.

Have you considered monel? Marvelous stuff! I understand it is compatible
with steel being an alloy nickel and copper with some iron.http://en.wikipedia.org/wiki/Monel

Wilbur Hubbard

I am just a little confused by your response here Oh, Great One...are
you suggesting that he re-plate his hull with Monel.,..yea that is
going to happen,
or have custom seacock made of said material...they may be
available..but not off the shelf at any chandelry that I know of.

On Thu, 15 May 2008 20:45:52 -0700 (PDT), "
wrote:

On May 15, 6:35 pm, "Wilbur Hubbard"
wrote:
"Steve Lusardi" wrote in message

...

Peggie,
As I mentioned before, bronze is absolutely out of the question with a
steel hull. They create a huge electrolysis issue which causes both valve
failure and steel corrosion throughout the hull. I think using plastic
within the sanitary system and 316 at the hull is the best compromise. The
reasoning is that the stainless will be continuously flushed with seawater
and only sometimes exposed to waste. The valve which will be continuously
exposed to waste will be plastic.
Steve

You don't actually expect any woman to understand electrolysis and how it
effects various metals placed side by side in salt water do you? It's
obvious she's clueless by her reply that totally failed to consider the
consequences of bronze and steel mated together.

Have you considered monel? Marvelous stuff! I understand it is compatible
with steel being an alloy nickel and copper with some iron.http://en.wikipedia.org/wiki/Monel

Wilbur Hubbard

I am just a little confused by your response here Oh, Great One...are
you suggesting that he re-plate his hull with Monel.,..yea that is
going to happen,
or have custom seacock made of said material...they may be
available..but not off the shelf at any chandelry that I know of.

Money is no object to Willie-boy. Nor is manners or good sense.

Bruce-in-Bangkok
(correct Address is bpaige125atgmaildotcom)

On Thu, 15 May 2008 18:35:26 -0400, "Wilbur Hubbard"
wrote:

You don't actually expect any woman to understand electrolysis and how it
effects various metals placed side by side in salt water do you?

You say any. I think the female college Chemistry teachers would
figure it out real fast. If you say there is a sex linked learning
disability, I might buy that.

Casady

wrote in message
...
On May 15, 6:35 pm, "Wilbur Hubbard"
wrote:
"Steve Lusardi" wrote in message

...

Peggie,
As I mentioned before, bronze is absolutely out of the question with a
steel hull. They create a huge electrolysis issue which causes both
valve
failure and steel corrosion throughout the hull. I think using plastic
within the sanitary system and 316 at the hull is the best compromise.
The
reasoning is that the stainless will be continuously flushed with
seawater
and only sometimes exposed to waste. The valve which will be
continuously
exposed to waste will be plastic.
Steve

You don't actually expect any woman to understand electrolysis and how it
effects various metals placed side by side in salt water do you? It's
obvious she's clueless by her reply that totally failed to consider the
consequences of bronze and steel mated together.

Have you considered monel? Marvelous stuff! I understand it is compatible
with steel being an alloy nickel and copper with some
iron.http://en.wikipedia.org/wiki/Monel

Wilbur Hubbard

I am just a little confused by your response here Oh, Great One...are
you suggesting that he re-plate his hull with Monel.,..yea that is
going to happen,
or have custom seacock made of said material...they may be
available..but not off the shelf at any chandelry that I know of.

Monel, or cupro-nickel as it is generically termed, is widely available in
the shipping industry. Surely thru-hulls are available made from this
wonderful substance. And through hulls of 316 SS as the OP seems inclined to
install are inferior to Monel. I've heard of at least one case where the
entire hull of a sailboat was made from cupro-nickel. It will last a
lifetime. And I've read that it has anti-fouling properties such that bottom
paint isn't necessary.

My next blue water cruiser will be made from this noble metal. But it's not
light. So that will necessitate my next hull be in the 120-140 foot range.
But, hey, I can afford the best!

Wilbur Hubbard
Swan 68 starter boat!

"Richard Casady" wrote in message
.. .
On Thu, 15 May 2008 18:35:26 -0400, "Wilbur Hubbard"
wrote:

You don't actually expect any woman to understand electrolysis and how it
effects various metals placed side by side in salt water do you?

You say any. I think the female college Chemistry teachers would
figure it out real fast. If you say there is a sex linked learning
disability, I might buy that.

Casady


It's not that women are incapable of learning scientific things but rather
it's that women tend to not be interested in them. Their brains are just
wired differently from a man's brain. And, I have discovered in my long,
eventful and highly educated life, that most women, even if they deal with
technology, have a tendency to be unable or have difficulties applying what
they know to the real world, mostly because such things don't interest them
and/or are incompatible with their innate thought processes.

Peggie's reply that you just have to compromise is typical of a woman's
reply. You NEVER have to compromise if you are a man. You take the time to
learn the facts, how to apply them and then you go with the BEST option.
That is NOT compromise.

Women go with their feelings because that's how they are wired. Men evolved
being the free-rangers, the providers and the moving force of the family
unit. Women evolved staying close to the cave or campsite. Their world
involved raising their offspring and manipulating the small area in and
around the camp. They were less often challenged with new decisions and were
less often called upon to make life and death decisions based on facts
because feelings and intuition don't work when confronted with a saber-tooth
tiger, for example.

That's why I am appalled when so many subscribers here seem to consider any
woman an authority on the purview of men.

I hope this helps.

Wilbur Hubbard

wrote in message
news
On Fri, 16 May 2008 11:14:28 -0400, "Wilbur Hubbard"
wrote:


"Richard Casady" wrote in message
...
On Thu, 15 May 2008 18:35:26 -0400, "Wilbur Hubbard"
wrote:

You don't actually expect any woman to understand electrolysis and how
it
effects various metals placed side by side in salt water do you?

You say any. I think the female college Chemistry teachers would
figure it out real fast. If you say there is a sex linked learning
disability, I might buy that.

Casady


It's not that women are incapable of learning scientific things but rather
it's that women tend to not be interested in them. Their brains are just
wired differently from a man's brain. And, I have discovered in my long,
eventful and highly educated life, that most women, even if they deal with
technology, have a tendency to be unable or have difficulties applying
what
they know to the real world, mostly because such things don't interest
them
and/or are incompatible with their innate thought processes.

Peggie's reply that you just have to compromise is typical of a woman's
reply. You NEVER have to compromise if you are a man. You take the time to
learn the facts, how to apply them and then you go with the BEST option.
That is NOT compromise.


The best option is almost ALWAYS a compromise. Only using all the
options combined would not be a compromise.



The very definition of the word "best" belies your illogic. Excelling all
others is one definition of best. Something that excels all others is NOT a
compromise by definition. If best were not at the top of the hierarchy you'd
have a point but since it IS at the top you don't have a point.

Liberalism failed you yet again. Liberalism teaches there are no absolutes.
The existence of the word "best" defeats the erroneous idea that there are
no absolutes. Try living in the real world! Become a conservative thinker.
We know there are absolutes. Compromise is defined as settling differences
by mutual concessions. You make NO concessions when you go with the best.
Therefore the best is no compromise.

You should have learned this basic logic in school but apparently you are a
product of public education which hasn't taught you reality. It has just
brainwashed you into being a liberal non-thinker.

Wilbur Hubbard

"Wilbur Hubbard" wrote in message
ews.com...

Peggie's reply that you just have to compromise is typical of a woman's
reply. You NEVER have to compromise if you are a man. You take the time to
learn the facts, how to apply them and then you go with the BEST option.
That is NOT compromise.

Women go with their feelings because that's how they are wired. Men
evolved being the free-rangers, the providers and the moving force of the
family unit. Women evolved staying close to the cave or campsite. Their
world involved raising their offspring and manipulating the small area in
and around the camp. They were less often challenged with new decisions
and were less often called upon to make life and death decisions based on
facts because feelings and intuition don't work when confronted with a
saber-tooth tiger, for example.

That's why I am appalled when so many subscribers here seem to consider
any woman an authority on the purview of men.

Your argument falls down because the question was about fixed sanitary
installations and your supposed male free-rangers would not need these in
the forest.
Back in the cave or campsite, however, the need for such installations would
soon become apparent to those who remained there 'manipulating' that small
area.