Water shooting up out of the head sink?

[Larry_Kraus]

Posted by Larry Kraus (kracherlandl@…>)

Hi everyone, …anyone???

Had an interesting experience 2 weeks ago. Sailing in 23 knots wind, on
a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d hit a
wave and water would shoot up out of the head sink. Geyser was about 12"
high. Shut the thru hull to eliminate the geyser. This was a first for
us in the 3 seasons we’ve had the boat. Does this happen to anyone else?
Are we missing some type of deflector over the outside of the thru hull?

Larry Kraus
F32

[Thomas_Wales]

Posted by Thomas Wales (twales@…>)

Wow Larry, you musta’ been bookin’…
It has not happened to me, but if it did, I, too, would let everyone
know. I think it would take a very unusual and perfect condition for
that to happen, so I wouldn’t worry about it happening regularly.
TW
F32 Pemaquid, ME



At 08:48 AM 7/11/2008, you wrote:

Hi everyone, …anyone???

Had an interesting experience 2 weeks ago. Sailing in 23 knots wind, on
a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d hit a
wave and water would shoot up out of the head sink. Geyser was about 12"
high. Shut the thru hull to eliminate the geyser. This was a first for
us in the 3 seasons we’ve had the boat. Does this happen to anyone else?
Are we missing some type of deflector over the outside of the thru hull?

Larry Kraus
F32

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[Bob1]

Posted by Bob (rweeks6508@…>)
Very interesting and I have not seen this on my boat. Fred and I were out there off Cape Fear 30 or 40 miles, banging away in a very nasty storm and did not experience what you did. It seems in the boating environment we do not make good use of check values. Being a x-submariner check values are life savers, ie one way water routes such as the waste grey or black should not be allowed to come back in and a check value would do that. It would also add some comfort knowing that if something broke downstream of the value you have some protection. Opinions?BobOn Fri, Jul 11, 2008 at 9:35 AM, Thomas Wales wrote:Wow Larry, you musta’ been bookin’… . It has not happened to me, but if it did, I, too, would let everyone know. I think it would take a very unusual and perfect condition for that to happen, so I wouldn’t worry about it happening regularly. TW F32 Pemaquid, ME At 08:48 AM 7/11/2008, you wrote: >Hi everyone, …anyone? ?? > >Had an interesting experience 2 weeks ago. Sailing in 23 knots wind, on >a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d hit a >wave and water would shoot up out of the head sink. Geyser was about 12" >high. Shut the thru hull to eliminate the geyser. This was a first for >us in the 3 seasons we’ve had the boat. Does this happen to anyone else? >Are we missing some type of deflector over the outside of the thru hull? > >Larry Kraus >F32 > > > >No virus found in this incoming message. >Checked by AVG. >Version: 7.5.526 / Virus Database: 270.4.7/1546 - Release Date: >7/11/2008 6:47 AM – No virus found in this outgoing message. Checked by AVG. Version: 7.5.526 / Virus Database: 270.4.7/1546 - Release Date: 7/11/2008 6:47 AM

[sgaber]

Posted by sgaber@…> (sgaber@…>)

Probably a good idea when sailing to close the seacocks, even at the dock when
not needed. Open seacocks and broken hoses have sunk a lot of boats.

Steve Gaber
Sanderling, 1967 C-31 #77
Oldsmar, FL

---- Larry Kraus <kracherlandl@…> wrote:

Hi everyone, …anyone???

Had an interesting experience 2 weeks ago. Sailing in 23 knots wind, on
a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d hit a
wave and water would shoot up out of the head sink. Geyser was about 12"
high. Shut the thru hull to eliminate the geyser. This was a first for
us in the 3 seasons we’ve had the boat. Does this happen to anyone else?
Are we missing some type of deflector over the outside of the thru hull?

Larry Kraus
F32

–
Steve Gaber
Sanderling, 1967 C-31 #77
Oldsmar, FL

[Capt_Herman]

Posted by Capt. Herman (sailtampa@…>)

greetings from Tampa.
My sink drain will always geyser up unless I close the valve…
I have a Freedom 40 cat/ketch…
Capt.Herman
also my double sink drains also need to be closed …usually by screwing in the strainers…

----- Original Message -----
From: sgaber@…
To: FreedomOwnersGroup@yahoogroups.com
Sent: Friday, July 11, 2008 2:10 PM
Subject: Re: [FreedomOwnersGroup] Water shooting up out of the head sink?


Probably a good idea when sailing to close the seacocks, even at the dock when not needed. Open seacocks and broken hoses have sunk a lot of boats.–Steve GaberSanderling, 1967 C-31 #77Oldsmar, FL---- Larry Kraus <kracherlandl@bitstream.net> wrote: > Hi everyone, …anyone???> > Had an interesting experience 2 weeks ago. Sailing in 23 knots wind, on > a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d hit a > wave and water would shoot up out of the head sink. Geyser was about 12" > high. Shut the thru hull to eliminate the geyser. This was a first for > us in the 3 seasons we’ve had the boat. Does this happen to anyone else? > Are we missing some type of deflector over the outside of the thru hull?> > Larry Kraus> F32> --Steve GaberSanderling, 1967 C-31 #77Oldsmar, FL

[rick_simonds1]

Posted by rick_simonds (rick_simonds@…>)

— In FreedomOwnersGroup@yahoogroups.com, Larry Kraus
<kracherlandl@…> wrote:

Hi everyone, …anyone???

Had an interesting experience 2 weeks ago. Sailing in 23 knots
wind, on
a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d
hit a
wave and water would shoot up out of the head sink. Geyser was
about 12"
high. Shut the thru hull to eliminate the geyser. This was a first
for
us in the 3 seasons we’ve had the boat. Does this happen to anyone
else?
Are we missing some type of deflector over the outside of the thru
hull?

Larry Kraus
F32

Yep, I saw it once on starboard tack in heavy wind and very, VERY
large waves. I’d never seen it before. In a perfect Curly (“The 3
Stooges”) impersonation, my first attempt at fixing it was putting
the rubber stopper into the sink drain. I then waited, studying my
fix closely. Of course, the first large wave after that shot the
rubber stopper into the middle of my forehead and doused me with
water. I thought a crewmember was going to asphyxiate laughing so
hard.

The head sink drain is all the way to starboard so heeling to
starboard moves it down, closer to the waterline. If the boat is
heeled over far enough and a passing wave then suddenly puts the
water level well above the heeled level of the sink drain, seawater
has no choice but to back up through the drain hose. A check valve in
the drain line would prevent it entirely but it happens so rarely
that, when it does, reducing the heel angle or shutting the seacock
are probably good enough solutions.

And water won’t shoot out of it but unless the seals and gaskets are
close to perfect, keep an eye on the head when heeled heavily to
starboard. It can overflow substantially.

Rick
Tallahassee

[Herman_and_Gail_Schi]

Posted by Herman and Gail Schiller (hschiller2@…>)

Guys with smaller centerboard sailboats are familiar with this
phenomenon. This is why the bottom of the centerboard wells have
flaps to close off the c’board well as much as possible minimizing
the turbulence in the well causing geysers. I assume the wave action
past the thru-hull is having a similar effect, ramming water up the
drain pipe. Good luck, Herm

At 08:48 AM 7/11/2008, you wrote:

Hi everyone, …anyone???

Had an interesting experience 2 weeks ago. Sailing in 23 knots wind, on
a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d hit a
wave and water would shoot up out of the head sink. Geyser was about 12"
high. Shut the thru hull to eliminate the geyser. This was a first for
us in the 3 seasons we’ve had the boat. Does this happen to anyone else?
Are we missing some type of deflector over the outside of the thru hull?

Larry Kraus
F32

[sgaber]

Posted by sgaber@…> (sgaber@…>)

Where are you in Tampa?

Is your F-40 a keel or centerboard model?

My old Columbia is in Big Bayou on the St. Pete side, a mile or two south of the
Pier.

Steve Gaber
Sanderling, 1967 C-31 #77
Oldsmar, FL


---- “Capt. Herman” <sailtampa@…> wrote:

greetings from Tampa.
My sink drain will always geyser up unless I close the valve…
I have a Freedom 40 cat/ketch…
Capt.Herman
also my double sink drains also need to be closed …usually by screwing in
the strainers…
----- Original Message -----
From: sgaber@…
To: FreedomOwnersGroup@yahoogroups.com
Sent: Friday, July 11, 2008 2:10 PM
Subject: Re: [FreedomOwnersGroup] Water shooting up out of the head sink?

Probably a good idea when sailing to close the seacocks, even at the dock
when not needed. Open seacocks and broken hoses have sunk a lot of boats.

Steve Gaber
Sanderling, 1967 C-31 #77
Oldsmar, FL

---- Larry Kraus <kracherlandl@…> wrote:

Hi everyone, …anyone???

Had an interesting experience 2 weeks ago. Sailing in 23 knots wind, on
a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d hit a
wave and water would shoot up out of the head sink. Geyser was about 12"
high. Shut the thru hull to eliminate the geyser. This was a first for
us in the 3 seasons we’ve had the boat. Does this happen to anyone else?
Are we missing some type of deflector over the outside of the thru hull?

Larry Kraus
F32

–
Steve Gaber
Sanderling, 1967 C-31 #77
Oldsmar, FL

–

[Larry_Kraus]

Posted by Larry Kraus (kracherlandl@…>)

Hi Thanks for the drain stopper story. I was laughing out loud in my
office. That kind of stuff happens to me all the time. Your story made
me feel normal. Lots of responses to this so I guess this happens to
most everyone at one point or another. I does sound like everything has
to be just right. But when it does, it’s exciting. Did I mention that it
was then that I learned that my bilge pump filter was plugged? So water
was coming in but it wasn’t leaving in any big hurry.

Best regards,

Larry Kraus

rick_simonds wrote:

— In FreedomOwnersGroup@yahoogroups.com
mailto:FreedomOwnersGroup%40yahoogroups.com, Larry Kraus
<kracherlandl@…> wrote:

Hi everyone, …anyone???

Had an interesting experience 2 weeks ago. Sailing in 23 knots
wind, on
a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d
hit a
wave and water would shoot up out of the head sink. Geyser was
about 12"
high. Shut the thru hull to eliminate the geyser. This was a first
for
us in the 3 seasons we’ve had the boat. Does this happen to anyone
else?
Are we missing some type of deflector over the outside of the thru
hull?

Larry Kraus
F32

Yep, I saw it once on starboard tack in heavy wind and very, VERY
large waves. I’d never seen it before. In a perfect Curly (“The 3
Stooges”) impersonation, my first attempt at fixing it was putting
the rubber stopper into the sink drain. I then waited, studying my
fix closely. Of course, the first large wave after that shot the
rubber stopper into the middle of my forehead and doused me with
water. I thought a crewmember was going to asphyxiate laughing so
hard.

The head sink drain is all the way to starboard so heeling to
starboard moves it down, closer to the waterline. If the boat is
heeled over far enough and a passing wave then suddenly puts the
water level well above the heeled level of the sink drain, seawater
has no choice but to back up through the drain hose. A check valve in
the drain line would prevent it entirely but it happens so rarely
that, when it does, reducing the heel angle or shutting the seacock
are probably good enough solutions.

And water won’t shoot out of it but unless the seals and gaskets are
close to perfect, keep an eye on the head when heeled heavily to
starboard. It can overflow substantially.

Rick
Tallahassee

[Scott_Forgey1]

Posted by Scott Forgey (jsforgey@…>)


Very funny

I have had the same thing happen as well. I have
closed the seacock, but think a check valve would be a better solution.

That is way down my list of chores, for now I close the seacock,
and make sure the head is set to “dry” as I too have watched the
head (when the valve broke” gush like old faithful…which is never
much fun to clean.

Scott Forgey
21362 Summertrace Circle
Boca Raton, FL 33428

561.445.5179
skype: sforgey1

“Nothing is ever wrong in the universe, there is only
what’s missing!”

W. Erhard

From: FreedomOwnersGroup@yahoogroups.com
[mailto:FreedomOwnersGroup@yahoogroups.com] On Behalf Of rick_simonds
Sent: Friday, July 11, 2008 3:08 PM
To: FreedomOwnersGroup@yahoogroups.com
Subject: [FreedomOwnersGroup] Re: Water shooting up out of the head
sink?

\

— In FreedomOwnersGroup@yahoogroups.com,
Larry Kraus
<kracherlandl@…> wrote:

Hi everyone, …anyone???

Had an interesting experience 2 weeks ago. Sailing in 23 knots
wind, on
a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d
hit a
wave and water would shoot up out of the head sink. Geyser was
about 12"
high. Shut the thru hull to eliminate the geyser. This was a first
for
us in the 3 seasons we’ve had the boat. Does this happen to anyone
else?
Are we missing some type of deflector over the outside of the thru
hull?

Larry Kraus
F32

Yep, I saw it once on starboard tack in heavy wind and very, VERY
large waves. I’d never seen it before. In a perfect Curly (“The 3
Stooges”) impersonation, my first attempt at fixing it was putting
the rubber stopper into the sink drain. I then waited, studying my
fix closely. Of course, the first large wave after that shot the
rubber stopper into the middle of my forehead and doused me with
water. I thought a crewmember was going to asphyxiate laughing so
hard.

The head sink drain is all the way to starboard so heeling to
starboard moves it down, closer to the waterline. If the boat is
heeled over far enough and a passing wave then suddenly puts the
water level well above the heeled level of the sink drain, seawater
has no choice but to back up through the drain hose. A check valve in
the drain line would prevent it entirely but it happens so rarely
that, when it does, reducing the heel angle or shutting the seacock
are probably good enough solutions.

And water won’t shoot out of it but unless the seals and gaskets are
close to perfect, keep an eye on the head when heeled heavily to
starboard. It can overflow substantially.

Rick
Tallahassee

\

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Checked by AVG.
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PM


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Checked by AVG.
Version: 7.5.524 / Virus Database: 270.4.8/1547 - Release Date: 7/11/2008 6:05 PM

[ron_barr]

Posted by ron barr (rwhb@…>)


Has anyone actually put a check valve in the sink drain on
an F32 for example? Size and type?
Thanks

Ron
Hoyt F32
Newport RI

[Larry_Kraus]

Posted by Larry Kraus (kracherlandl@…>)

I’m interested in this check valve discussion since it was suggested
last week.

One issue is space for the check valve. I also wonder, if there is
flexible between the ball valve and check valve, might the flex hose to
burst in one of these high wind/wave action episodes. It’s hard to say
how much fluid pressure is in the hose when Mt Vesuvius shoots out of
the sink. But It is pretty substantial. With the check valve closed,
there is no way for that pressure to release and the hose and it’s
connections will have to take it.

A ball valve/check valve combo at the through hull would be a nice.

I, too, wonder if anyone has seen anything like this.

Larry Kraus





ron barr wrote:

Has anyone actually put a check valve in the sink drain on an F32 for
example? Size and type?

Thanks

Ron

Hoyt F32

Newport RI

[John_Jones]

Posted by John Jones (a1john@…>)

I solved that problem years ago with a cheap rubber-plastic drain plug
in the sink.
John Jones F-33 #55 1982




arry Kraus wrote:

I’m interested in this check valve discussion since it was suggested
last week.

One issue is space for the check valve. I also wonder, if there is
flexible between the ball valve and check valve, might the flex hose to
burst in one of these high wind/wave action episodes. It’s hard to say
how much fluid pressure is in the hose when Mt Vesuvius shoots out of
the sink. But It is pretty substantial. With the check valve closed,
there is no way for that pressure to release and the hose and it’s
connections will have to take it.

A ball valve/check valve combo at the through hull would be a nice.

I, too, wonder if anyone has seen anything like this.

Larry Kraus

ron barr wrote:

Has anyone actually put a check valve in the sink drain on an F32 for
example? Size and type?

Thanks

Ron

Hoyt F32

Newport RI

[Bob1]

Posted by Bob (rweeks6508@…>)
I did suggest the check value solution but the simpliest solution while underway, specially singlehanded, I shut all the values except the engine raw water. Real cheap! All my values are very accessable gray water overboard and flushing water is at the end of the port seat and there is a little lift hatch to access them. Toilet no issue its suppose to be shutdown and locked unless you are 3 miles out. If I am singlehanded I am not usually below making a mess anyway and if I am anchor will then there is no problem. Everythng is layed out, sandwiches, drinks, snacks, etc including that little overboard plastic hose so I dont have to go below a lot! {:>) The way I look at it the less holes open the quicker you can contol the issue when it occurs. However I am too interested if anyone did the check value thing…BobOn Mon, Jul 14, 2008 at 1:09 PM, John Jones wrote:I solved that problem years ago with a cheap rubber-plastic drain plug in the sink. John Jones F-33 #55 1982 arry Kraus wrote: > I’m interested in this check valve discussion since it was suggested > last week. > > One issue is space for the check valve. I also wonder, if there is > flexible between the ball valve and check valve, might the flex hose to > burst in one of these high wind/wave action episodes. It’s hard to say > how much fluid pressure is in the hose when Mt Vesuvius shoots out of > the sink. But It is pretty substantial. With the check valve closed, > there is no way for that pressure to release and the hose and it’s > connections will have to take it. > > A ball valve/check valve combo at the through hull would be a nice. > > I, too, wonder if anyone has seen anything like this. > > Larry Kraus > > ron barr wrote: > > > > Has anyone actually put a check valve in the sink drain on an F32 for > > example? Size and type? > > > > Thanks > > > > > > > > > > > > Ron > > > > Hoyt F32 > > > > Newport RI > > > > > > > > > >

[sward1]

Posted by Sward (swardfullsail@…>)
Hello all,

My computer has been in the shop so am delayed in this topic. I too have water in the sink quite a bit. So far I have just stuck a facecloth in the drain-works to keep the water from gushing and slurping. The backflow valve makes a lot of sense-wish I had thought of it
“Life is a Reach, then you Jibe”

SWARD— On Fri, 7/11/08, rick_simonds <rick_simonds@…> wrote:
From: rick_simonds <rick_simonds@…>Subject: [FreedomOwnersGroup] Re: Water shooting up out of the head sink?To: FreedomOwnersGroup@yahoogroups.comDate: Friday, July 11, 2008, 3:08 PM


— In FreedomOwnersGroup@ yahoogroups. com, Larry Kraus <kracherlandl@ …> wrote:>> Hi everyone, …anyone? ??> > Had an interesting experience 2 weeks ago. Sailing in 23 knots wind, on > a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d hit a > wave and water would shoot up out of the head sink. Geyser was about 12" > high. Shut the thru hull to eliminate the geyser. This was a first for > us in the 3 seasons we’ve had the boat. Does this happen to anyone else? > Are we missing some type of deflector over the outside of the thru hull?> > Larry Kraus> F32>Yep, I saw it once on starboard tack in heavy wind and very, VERY large waves. I’d never seen it before. In a perfect Curly (“The 3 Stooges”)
impersonation, my first attempt at fixing it was putting the rubber stopper into the sink drain. I then waited, studying my fix closely. Of course, the first large wave after that shot the rubber stopper into the middle of my forehead and doused me with water. I thought a crewmember was going to asphyxiate laughing so hard.The head sink drain is all the way to starboard so heeling to starboard moves it down, closer to the waterline. If the boat is heeled over far enough and a passing wave then suddenly puts the water level well above the heeled level of the sink drain, seawater has no choice but to back up through the drain hose. A check valve in the drain line would prevent it entirely but it happens so rarely that, when it does, reducing the heel angle or shutting the seacock are probably good enough solutions.And water won’t shoot out of it but unless the seals and gaskets are close
to perfect, keep an eye on the head when heeled heavily to starboard. It can overflow substantially.RickTallahassee

[Herman_and_Gail_Schi]

Posted by Herman and Gail Schiller (hschiller2@…>)

The trouble with check valves is that they can be disabled by debris,
hair, etc., and then they permit some backflow, and sometimes, not
enough forward flow. Herm

At 04:29 PM 7/29/2008, you wrote:

Hello all,

My computer has been in the shop so am delayed in this topic. I too
have water in the sink quite a bit. So far I have just stuck a
facecloth in the drain-works to keep the water from gushing and
slurping. The backflow valve makes a lot of sense-wish I had thought of it

“Life is a Reach, then you Jibe”

SWARD

— On Fri, 7/11/08, rick_simonds <rick_simonds@…> wrote:
From: rick_simonds <rick_simonds@…>
Subject: [FreedomOwnersGroup] Re: Water shooting up out of the head sink?
To: FreedomOwnersGroup@yahoogroups.com
Date: Friday, July 11, 2008, 3:08 PM

— In
mailto:FreedomOwnersGroup%40yahoogroups.comFreedomOwnersGroup@
yahoogroups. com, Larry Kraus
<kracherlandl@ …> wrote:

Hi everyone, …anyone? ??

Had an interesting experience 2 weeks ago. Sailing in 23 knots
wind, on
a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps. We’d
hit a
wave and water would shoot up out of the head sink. Geyser was
about 12"
high. Shut the thru hull to eliminate the geyser. This was a first
for
us in the 3 seasons we’ve had the boat. Does this happen to anyone
else?
Are we missing some type of deflector over the outside of the thru
hull?

Larry Kraus
F32

Yep, I saw it once on starboard tack in heavy wind and very, VERY
large waves. I’d never seen it before. In a perfect Curly (“The 3
Stooges”) impersonation, my first attempt at fixing it was putting
the rubber stopper into the sink drain. I then waited, studying my
fix closely. Of course, the first large wave after that shot the
rubber stopper into the middle of my forehead and doused me with
water. I thought a crewmember was going to asphyxiate laughing so
hard.

The head sink drain is all the way to starboard so heeling to
starboard moves it down, closer to the waterline. If the boat is
heeled over far enough and a passing wave then suddenly puts the
water level well above the heeled level of the sink drain, seawater
has no choice but to back up through the drain hose. A check valve in
the drain line would prevent it entirely but it happens so rarely
that, when it does, reducing the heel angle or shutting the seacock
are probably good enough solutions.

And water won’t shoot out of it but unless the seals and gaskets are
close to perfect, keep an eye on the head when heeled heavily to
starboard. It can overflow substantially.

Rick
Tallahassee

[macks011]

Posted by macks011 (macks02@…>)

I installed a RV waste dump valve in the sink drain
http://www.pplmotorhomes.com/parts/rv-toilets-tanks/20097.htm
This is a blade valve which takes up very little space an closes and
opens with a push or pull.



— In FreedomOwnersGroup@yahoogroups.com, Herman and Gail Schiller
<hschiller2@…> wrote:

The trouble with check valves is that they can be disabled by
debris,
hair, etc., and then they permit some backflow, and sometimes, not
enough forward flow. Herm

At 04:29 PM 7/29/2008, you wrote:

Hello all,

My computer has been in the shop so am delayed in this topic. I
too
have water in the sink quite a bit. So far I have just stuck a
facecloth in the drain-works to keep the water from gushing and
slurping. The backflow valve makes a lot of sense-wish I had
thought of it

“Life is a Reach, then you Jibe”

SWARD

— On Fri, 7/11/08, rick_simonds <rick_simonds@…> wrote:
From: rick_simonds <rick_simonds@…>
Subject: [FreedomOwnersGroup] Re: Water shooting up out of the
head sink?
To: FreedomOwnersGroup@yahoogroups.com
Date: Friday, July 11, 2008, 3:08 PM

— In
mailto:FreedomOwnersGroup%40yahoogroups.comFreedomOwnersGroup@
yahoogroups. com, Larry Kraus
<kracherlandl@ …> wrote:

Hi everyone, …anyone? ??

Had an interesting experience 2 weeks ago. Sailing in 23 knots
wind, on
a starboard beat, boatspeed ~7.5 knots. Waves had whitecaps.
We’d
hit a
wave and water would shoot up out of the head sink. Geyser was
about 12"
high. Shut the thru hull to eliminate the geyser. This was a
first
for
us in the 3 seasons we’ve had the boat. Does this happen to
anyone
else?
Are we missing some type of deflector over the outside of the
thru
hull?

Larry Kraus
F32

Yep, I saw it once on starboard tack in heavy wind and very, VERY
large waves. I’d never seen it before. In a perfect Curly (“The 3
Stooges”) impersonation, my first attempt at fixing it was putting
the rubber stopper into the sink drain. I then waited, studying my
fix closely. Of course, the first large wave after that shot the
rubber stopper into the middle of my forehead and doused me with
water. I thought a crewmember was going to asphyxiate laughing so
hard.

The head sink drain is all the way to starboard so heeling to
starboard moves it down, closer to the waterline. If the boat is
heeled over far enough and a passing wave then suddenly puts the
water level well above the heeled level of the sink drain, seawater
has no choice but to back up through the drain hose. A check valve
in
the drain line would prevent it entirely but it happens so rarely
that, when it does, reducing the heel angle or shutting the seacock
are probably good enough solutions.

And water won’t shoot out of it but unless the seals and gaskets
are
close to perfect, keep an eye on the head when heeled heavily to
starboard. It can overflow substantially.

Rick
Tallahassee

[ron_barr]

Posted by ron barr (rwhb@…>)


Interesting idea but wouldn’t a check valve accomplish
the same thing without having to remember to shut a valve off and on?
By the way what size unit did you use (we have a F32) and
did you install it right under the sink – presumably one just reached
under and push/pulls it?

Ron
Hoyt F32
Newport RI