Date   

regular service for the 220V high pressure watermaker pump?

Mark Pitt
 

I have a Super Maramu with the 150 liter per hour watermaker. Does
the 220V high-pressure pump require some kind of regular service? I
do not have any documentation recommending any maintenance but I want
to be certain before I head out to sea. It is the "Cat Pump" with the
blue oil reservoir and the faucet drain. Do I need to change oil or
seals? The pump works fine.

Mark "Sabbatical III" ASM #419


New owner?

rob purdie <r.purdie@...>
 

I intent to change from a Rival 41 to an Amel Santorin
and have just joined the group. Can any member give me good advice
on general survey issues which might not be obvious to a newcomer to the design?


Santorin Owners Manual

john.stonier@btinternet.com <john.stonier@...>
 

I just purchased Santorin #143 Allegra, the second to last built. The
previous owner is French, and only has the French owners manual. I
sent an e-mail to Amel 2 weeks ago and have had no response.

Can anyone help me get a copy of this. I also understand Amel produce
a CDROM for the Super Maramu. Would it make sense to purchase this
from Amel as many of the systems are the same ?

thanks

john stonier


Re: [Amel Yacht Owners] Re: Head pump

georges pellegrini <dji314@...>
 

Yes, I have it on my Santorin. Installed by the factory.
Georges Pellegrini. Santorin #132

On Sep 19, 2006, at 6:43 PM, joemac4sail wrote:


Hi All
Has anyone retrofitted in a Satorin, a simiar designed holding
tank to the one fitted in the SM2000. I was impressed with >the
simplicity of the design with the tank sitting over the outlet >valve.
Joe McDonnell, Khamsin B

--- In amelyachtowners@..., "Willem J. Kroes"
<willem.j.kroes@...> wrote:

I had the same problem this year, but for the first time in 4 years,
afther having replaced both toilets on my Santorin 1992 (with
standard Jabsco's).
I changed the joker valve, and this cured the problem, in any case
for the rest of the season. But, when looking at the failing valve
(new in 2002), I noticed that there was a little bit of play between
the two rubber lips in crossed position. There is another (older)
type of joker valve used in the original R&M toilets, Amel fitted in
the early SM's and Santorins 15 years ago, with just one horizontal
lip. I suppose this type of joker valve will withstand the backflow
pressure better than the new type.

Best Regards,

Willem J. Kroes
Amel Santorin #69
"Kavanga"


--- In amelyachtowners@..., "Udo J. Reich" udo@
wrote:

We have the same problem with our forward tank. I see two
solutions. One is
a one way valve as Gary has suggested. The other one would be to
refit the
tank so that the inflow from the bowl goes into the tank towards
the top of
the tank. Let me know if you come up with any solutions



Udo J. Reich

_____

From: amelliahona [mailto:no_reply@...]
Sent: Sunday, September 17, 2006 8:52 AM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Head pump




Mike Ondra wrote:
" We are persistently getting backflow of waste water through the
check
valves
back into the toilet bowl, enough sometimes to fill the bowl.
Besides being
unpleasant at anchor, this can be a mess under sail."

Ian Shepherd wrote:
" I have always had the same problem with the forward head only. I
have
changed the joker valve several times, but it makes little
difference."

Hi Mike and Ian:

I have had the same problem with the forward head only. I
originally
thought it was water siphoning from the fill pump side but I shut
off
the sea water supply valve while under sail and the toilet bowl
filled
with foul water anyway. It was only to a certain level and never
would
overflow the bowl so I think it was just the back flow through the
joker valve of the outflow pipe to the holding tank. Ian, like you
changing the joker valve several times and that DID NOT remedy the
situation. Also it does this with the holding tank empty or
full so
I
don't think it is related to the mode of entry of the outflow pipe
into the holding tank.

I suspect that the joker vavle does not have enough strength to
withstand the pressure head of water that is in the forward head
outflow pipe. As you know this pipe is taller than the aft head
pipe
and thus would have a higher head of pressure. Perhaps
installing a
more robust one way valve in the outflow pipe could be a solution.
I plan to research this a bit more. Nice to know that I am not the
only one out here with this problem. Joel, do you have any
thoughts
on this issue?

Kindest regards, Gary Silver S/V Liahona










Re: Fresh Water Pressure

milesbidwell <mbidwell@...>
 

The problem is most likely caused by blockage between the pump and
the pressure sensor. To fix this, remove the pyramid shaped
connector between the pump and the adjustment box by removing the
many small screws attaching it to the pump. Inside you will see a
small hole that allows water to push against a membrane in the
control box. Cleaning out the hole will probably fix the problem.

--- In amelyachtowners@..., "edmund_steele"
<edmundsteele@...> wrote:

Does anyone know how to adjust the pressure settings on the Super
Maramu's FEIT (?)freshwater pump? I removed the plastic pressure
switch cover and there appears to be two screw adjusters - neither
of
which has much effect. My problem is with the low setting at which
the
pump should turn on.
Ed Steele
SV DoodleBug SM331


Re: [Amel Yacht Owners] Head pump

milesbidwell <mbidwell@...>
 

I have found that two liters of pickling strength vinegar and fresh
water pumped through the toilet into the holding tank once a month
makes the jocker valves last much long and largly stops any
backflow. When ever I see any sign of backflow, I change the jocker
valve. This usually fixes the problem for at least two or three
months.



--- In amelyachtowners@..., "Udo J. Reich" <udo@...>
wrote:

We have the same problem with our forward tank. I see two
solutions. One is
a one way valve as Gary has suggested. The other one would be to
refit the
tank so that the inflow from the bowl goes into the tank towards
the top of
the tank. Let me know if you come up with any solutions



Udo J. Reich

_____

From: amelliahona [mailto:no_reply@...]
Sent: Sunday, September 17, 2006 8:52 AM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Head pump




Mike Ondra wrote:
" We are persistently getting backflow of waste water through the
check
valves
back into the toilet bowl, enough sometimes to fill the bowl.
Besides being
unpleasant at anchor, this can be a mess under sail."

Ian Shepherd wrote:
" I have always had the same problem with the forward head only. I
have
changed the joker valve several times, but it makes little
difference."

Hi Mike and Ian:

I have had the same problem with the forward head only. I
originally
thought it was water siphoning from the fill pump side but I shut
off
the sea water supply valve while under sail and the toilet bowl
filled
with foul water anyway. It was only to a certain level and never
would
overflow the bowl so I think it was just the back flow through the
joker valve of the outflow pipe to the holding tank. Ian, like you
changing the joker valve several times and that DID NOT remedy the
situation. Also it does this with the holding tank empty or full
so I
don't think it is related to the mode of entry of the outflow pipe
into the holding tank.

I suspect that the joker vavle does not have enough strength to
withstand the pressure head of water that is in the forward head
outflow pipe. As you know this pipe is taller than the aft head
pipe
and thus would have a higher head of pressure. Perhaps installing a
more robust one way valve in the outflow pipe could be a solution.
I plan to research this a bit more. Nice to know that I am not the
only one out here with this problem. Joel, do you have any thoughts
on this issue?

Kindest regards, Gary Silver S/V Liahona









solar panels

john martin <symoondog@...>
 

I've just installed 2 130 watt solar panels on my SM .I put them on the top of the aft cabin, attached to the hand rails,with stainless steel tubing and clamps. The only hole I drilled in the boat was a small hole in the back of the missen mast to run the wire. I used the new solar boaster, and it seems to work great. I should be able to leave the boat at anchor or on the hard for a few days and keep the fridge and freezer going. I posted a few pictures of it under moondogs file if any ones interested. John 'Moondog' Sm248

_________________________________________________________________
Try the new Live Search today! http://imagine-windowslive.com/minisites/searchlaunch/?locale=en-us&FORM=WLMTAG


(No subject)

Robert C. Lavigne <rcl@...>
 

At risk of repeating someone's suffering .....I came across this the other day

http://www.cooperss.com/assetdetail.php?show=marine&ID=24043&P=A


Rio Dulce - draft limitations of bar entrance

Zanareva
 

We're planning on heading toward Mexico, Belize and beyond this
winter. Rio Dulce also sounds tempting to visit. One of the SSCA
members had this to say about maximum draft when I asked him today.

Steve Pavlidis of S/V IV Play wrote:

A 6' can cross the bar at most times, a 7' draft must wait for a
high tide, and tides there run only about 1'-1.5' at times, but it is
doable. I've seen 7 1/2' drafts come in, and one 8' draft that had to
be hauled over the bar. Just make sure you get a good read on the
tides at the mouth of the river, most tide programs will handle this.
I've just sounded the bar again for the 12th time and the results
will be out in my new guide. If you put the sea buoy on your stern
and steer 225 for the center of the canyon mouth you won't have less
than six feet at MLW. But you MUST watch out for the tide here that
when on the flood will push you to the south and on the ebb to the
north where the shallower water lies. Then, when you're over the
bar, continue until you're past the Texaco fuel dock before turning
to starboard to anchor, most folks turn too soon and run aground.

Steve publishes cruising guides. Check out www.islandhopping.com

Best regards
Richard Tate
SM "Spice"


Re: Head pump

joseph mc donnell
 

Hi All
Has anyone retrofitted in a Satorin, a simiar designed holding
tank to the one fitted in the SM2000. I was impressed with >the
simplicity of the design with the tank sitting over the outlet >valve.
Joe McDonnell, Khamsin B


--- In amelyachtowners@..., "Willem J. Kroes"
<willem.j.kroes@...> wrote:

I had the same problem this year, but for the first time in 4 years,
afther having replaced both toilets on my Santorin 1992 (with
standard Jabsco's).
I changed the joker valve, and this cured the problem, in any case
for the rest of the season. But, when looking at the failing valve
(new in 2002), I noticed that there was a little bit of play between
the two rubber lips in crossed position. There is another (older)
type of joker valve used in the original R&M toilets, Amel fitted in
the early SM's and Santorins 15 years ago, with just one horizontal
lip. I suppose this type of joker valve will withstand the backflow
pressure better than the new type.

Best Regards,

Willem J. Kroes
Amel Santorin #69
"Kavanga"


--- In amelyachtowners@..., "Udo J. Reich" udo@
wrote:

We have the same problem with our forward tank. I see two
solutions. One is
a one way valve as Gary has suggested. The other one would be to
refit the
tank so that the inflow from the bowl goes into the tank towards
the top of
the tank. Let me know if you come up with any solutions



Udo J. Reich

_____

From: amelliahona [mailto:no_reply@...]
Sent: Sunday, September 17, 2006 8:52 AM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Head pump




Mike Ondra wrote:
" We are persistently getting backflow of waste water through the
check
valves
back into the toilet bowl, enough sometimes to fill the bowl.
Besides being
unpleasant at anchor, this can be a mess under sail."

Ian Shepherd wrote:
" I have always had the same problem with the forward head only. I
have
changed the joker valve several times, but it makes little
difference."

Hi Mike and Ian:

I have had the same problem with the forward head only. I
originally
thought it was water siphoning from the fill pump side but I shut
off
the sea water supply valve while under sail and the toilet bowl
filled
with foul water anyway. It was only to a certain level and never
would
overflow the bowl so I think it was just the back flow through the
joker valve of the outflow pipe to the holding tank. Ian, like you
changing the joker valve several times and that DID NOT remedy the
situation. Also it does this with the holding tank empty or full so
I
don't think it is related to the mode of entry of the outflow pipe
into the holding tank.

I suspect that the joker vavle does not have enough strength to
withstand the pressure head of water that is in the forward head
outflow pipe. As you know this pipe is taller than the aft head pipe
and thus would have a higher head of pressure. Perhaps installing a
more robust one way valve in the outflow pipe could be a solution.
I plan to research this a bit more. Nice to know that I am not the
only one out here with this problem. Joel, do you have any thoughts
on this issue?

Kindest regards, Gary Silver S/V Liahona







[Non-text portions of this message have been removed]


Re: [Amel Yacht Owners] Re: MaxiProp order form question

Roger Banks <roger.banks@...>
 

Hi Bob

Thanks for taking the trouble to post a copy of this diagram; I do in
fact already have this. What I think I need in order to complete the
specification for the MaxProp is the reduction in the gearbox. Any
ideas? If not, I guess I'll send them what I have plus your notes and
see if they can sort it out. Best thing would be if I could get a
reply from Olivier.

Regards, Roger, Mango 28 Zorba

--- In amelyachtowners@..., Roger Banks <roger.banks@...>
wrote:

I'm wondering if anyone can help me with a factoid please, having
tried Olivier without response unfortunately. I own Mango 28,
built
in 1982. It has the Perkins 4.236 motor with Hurth HBW400-2R
gearbox.
For the purpose of ordering a MaxiProp, can you please let me know
what would be the reduction at the propellor?

Regards, Roger, Mango 28, Zorba

Roger,


I posted the mechanical drawing of the prop shaft in the pistures
section. It appears to be the original drawing from Juin 1977. I have
a few notes from our installation in 1992. The shaft is 35 mm, Zinks
are 70mm, Prop is 22". For pitch adjustment: Blade Setting angle 20
degrees-15.0. Right rotation 20 degrees, X (-) is K, Y (.) is E
Let me know if this is sufficient.
Bob
Tempest
Mango 44
wrpace@...






Re: Head pump

Willem J. Kroes <willem.j.kroes@...>
 

I had the same problem this year, but for the first time in 4 years,
afther having replaced both toilets on my Santorin 1992 (with
standard Jabsco's).
I changed the joker valve, and this cured the problem, in any case
for the rest of the season. But, when looking at the failing valve
(new in 2002), I noticed that there was a little bit of play between
the two rubber lips in crossed position. There is another (older)
type of joker valve used in the original R&M toilets, Amel fitted in
the early SM's and Santorins 15 years ago, with just one horizontal
lip. I suppose this type of joker valve will withstand the backflow
pressure better than the new type.

Best Regards,

Willem J. Kroes
Amel Santorin #69
"Kavanga"


--- In amelyachtowners@..., "Udo J. Reich" <udo@...>
wrote:

We have the same problem with our forward tank. I see two
solutions. One is
a one way valve as Gary has suggested. The other one would be to
refit the
tank so that the inflow from the bowl goes into the tank towards
the top of
the tank. Let me know if you come up with any solutions



Udo J. Reich

_____

From: amelliahona [mailto:no_reply@...]
Sent: Sunday, September 17, 2006 8:52 AM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Head pump




Mike Ondra wrote:
" We are persistently getting backflow of waste water through the
check
valves
back into the toilet bowl, enough sometimes to fill the bowl.
Besides being
unpleasant at anchor, this can be a mess under sail."

Ian Shepherd wrote:
" I have always had the same problem with the forward head only. I
have
changed the joker valve several times, but it makes little
difference."

Hi Mike and Ian:

I have had the same problem with the forward head only. I
originally
thought it was water siphoning from the fill pump side but I shut
off
the sea water supply valve while under sail and the toilet bowl
filled
with foul water anyway. It was only to a certain level and never
would
overflow the bowl so I think it was just the back flow through the
joker valve of the outflow pipe to the holding tank. Ian, like you
changing the joker valve several times and that DID NOT remedy the
situation. Also it does this with the holding tank empty or full so
I
don't think it is related to the mode of entry of the outflow pipe
into the holding tank.

I suspect that the joker vavle does not have enough strength to
withstand the pressure head of water that is in the forward head
outflow pipe. As you know this pipe is taller than the aft head pipe
and thus would have a higher head of pressure. Perhaps installing a
more robust one way valve in the outflow pipe could be a solution.
I plan to research this a bit more. Nice to know that I am not the
only one out here with this problem. Joel, do you have any thoughts
on this issue?

Kindest regards, Gary Silver S/V Liahona









LADY DIVINA, SM 317, FOR SALE

L. CAMERON <solarconstruction@...>
 

LADY DIVINA, SM 317, YEAR 2001, IS NOW FOR SALE.
ASKING PRICE US$336,000, DELAWARE, USA, REGISTRATION.
IMMACULATE CONDITION, LESS THAN 2000 hrs ON YANMAR DIESEL/ONAN GENSET. NEW GATEFF SAILS, DIVE COMPRESSOR + MANY EXTRAS & SPARES. READY TODAY FOR WORLD CRUISING.
NOW LYING PT. CRUZ, VENEZ.
FOR MORE INFO PLEASE CONTACT: MR. LANE MOLLER
solarconstruction@...




---------------------------------
All-new Yahoo! Mail - Fire up a more powerful email and get things done faster.


LADY DIVINA, SM 317, FOR SALE

L. CAMERON <solarconstruction@...>
 

LADY DIVINA, SM 317, YEAR 2001, IS NOW FOR SALE.
ASKING PRICE US$336,000, DELAWARE, USA, REGISTRATION.
IMMACULATE CONDITION, LESS THAN 2000 hrs ON YANMAR DIESEL/ONAN GENSET. NEW GATEFF SAILS, DIVE COMPRESSOR + MANY EXTRAS & SPARES. READY TODAY FOR WORLD CRUISING.
NOW LYING PT. CRUZ, VENEZ.
FOR MORE INFO PLEASE CONTACT: MR. LANE MOLLER
solarconstruction@...




---------------------------------
Do you Yahoo!?
Get on board. You're invited to try the new Yahoo! Mail.


LADY DIVINA, SM 317, FOR SALE

L. CAMERON <solarconstruction@...>
 

LADY DIVINA, SM 317, YEAR 2001, IS NOW FOR SALE.
ASKING PRICE US$336,000, DELAWARE, USA, REGISTRATION.
IMMACULATE CONDITION, LESS THAN 2000 hrs ON YANMAR DIESEL/ONAN GENSET. NEW GATEFF SAILS, DIVE COMPRESSOR + MANY EXTRAS & SPARES. READY TODAY FOR WORLD CRUISING.
NOW LYING PT. CRUZ, VENEZ.
FOR MORE INFO PLEASE CONTACT: MR. LANE MOLLER
solarconstruction@...




---------------------------------
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[Non-text portions of this message have been removed]


Re: [Amel Yacht Owners] Head pump

Udo J. Reich <udo@...>
 

We have the same problem with our forward tank. I see two solutions. One is
a one way valve as Gary has suggested. The other one would be to refit the
tank so that the inflow from the bowl goes into the tank towards the top of
the tank. Let me know if you come up with any solutions



Udo J. Reich

_____

From: amelliahona [mailto:no_reply@...]
Sent: Sunday, September 17, 2006 8:52 AM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Head pump




Mike Ondra wrote:
" We are persistently getting backflow of waste water through the check
valves
back into the toilet bowl, enough sometimes to fill the bowl. Besides being
unpleasant at anchor, this can be a mess under sail."

Ian Shepherd wrote:
" I have always had the same problem with the forward head only. I have
changed the joker valve several times, but it makes little difference."

Hi Mike and Ian:

I have had the same problem with the forward head only. I originally
thought it was water siphoning from the fill pump side but I shut off
the sea water supply valve while under sail and the toilet bowl filled
with foul water anyway. It was only to a certain level and never would
overflow the bowl so I think it was just the back flow through the
joker valve of the outflow pipe to the holding tank. Ian, like you
changing the joker valve several times and that DID NOT remedy the
situation. Also it does this with the holding tank empty or full so I
don't think it is related to the mode of entry of the outflow pipe
into the holding tank.

I suspect that the joker vavle does not have enough strength to
withstand the pressure head of water that is in the forward head
outflow pipe. As you know this pipe is taller than the aft head pipe
and thus would have a higher head of pressure. Perhaps installing a
more robust one way valve in the outflow pipe could be a solution.
I plan to research this a bit more. Nice to know that I am not the
only one out here with this problem. Joel, do you have any thoughts
on this issue?

Kindest regards, Gary Silver S/V Liahona


Re: [Amel Yacht Owners] Head pump

amelliahona <no_reply@...>
 

Mike Ondra wrote:
" We are persistently getting backflow of waste water through the check valves
back into the toilet bowl, enough sometimes to fill the bowl. Besides being
unpleasant at anchor, this can be a mess under sail."

Ian Shepherd wrote:
" I have always had the same problem with the forward head only. I have
changed the joker valve several times, but it makes little difference."

Hi Mike and Ian:


I have had the same problem with the forward head only. I originally
thought it was water siphoning from the fill pump side but I shut off
the sea water supply valve while under sail and the toilet bowl filled
with foul water anyway. It was only to a certain level and never would
overflow the bowl so I think it was just the back flow through the
joker valve of the outflow pipe to the holding tank. Ian, like you
changing the joker valve several times and that DID NOT remedy the
situation. Also it does this with the holding tank empty or full so I
don't think it is related to the mode of entry of the outflow pipe
into the holding tank.

I suspect that the joker vavle does not have enough strength to
withstand the pressure head of water that is in the forward head
outflow pipe. As you know this pipe is taller than the aft head pipe
and thus would have a higher head of pressure. Perhaps installing a
more robust one way valve in the outflow pipe could be a solution.
I plan to research this a bit more. Nice to know that I am not the
only one out here with this problem. Joel, do you have any thoughts
on this issue?

Kindest regards, Gary Silver S/V Liahona


Re: MaxiProp order form question

tepestdoc <tepestdoc@...>
 

--- In amelyachtowners@..., Roger Banks <roger.banks@...>
wrote:

I'm wondering if anyone can help me with a factoid please, having
tried Olivier without response unfortunately. I own Mango 28,
built
in 1982. It has the Perkins 4.236 motor with Hurth HBW400-2R
gearbox.
For the purpose of ordering a MaxiProp, can you please let me know
what would be the reduction at the propellor?

Regards, Roger, Mango 28, Zorba

Roger,
I posted the mechanical drawing of the prop shaft in the pistures
section. It appears to be the original drawing from Juin 1977. I have
a few notes from our installation in 1992. The shaft is 35 mm, Zinks
are 70mm, Prop is 22". For pitch adjustment: Blade Setting angle 20
degrees-15.0. Right rotation 20 degrees, X (-) is K, Y (.) is E
Let me know if this is sufficient.
Bob
Tempest
Mango 44
wrpace@...




[Non-text portions of this message have been removed]


Re: [Amel Yacht Owners] Head pump

Mike Ondra <mondra@...>
 

Hi Ian,

Using the high volume flush indeed can improve the character of the backwash
into the bowl, however it also significantly limits the number of flushes
possible when the holding tank is not set to discharger overboard (in port).
I am considering installing a ball valve in the riser pipe just above the
head pump to allow a manual shut off to the backflow problem. Primitive but
should be effective. I would hope there would be a more elegant solution.

Relative to the riser tube inside the holding tank, the swan neck 180 top
would be appropriate to act as a trap to prevent holding tank contents from
sloshing back down the tube. But if the tube was working properly, it would
be full and therefore would not be able to take on more effluent. That
copper riser tube was severely constricted with mineral building in Aletes
as previously reported. I mechanically pried off the buildup with a
combination of screwdriver and hacksaw blade up into the tube as far as they
could reach. My sense was that I could reach fully to the top of the tube
(only with great difficulty and scraping of knuckles) and that it simple
ended near the top of the tank without any elbow or gooseneck. I hope that
is the case because there would be no way to pry off deposits around the
elbow. I would really like to know what the inside plumbing of the holding
tank looks like, and how Amel expects us to be able to maintain any parts
inside it.

Mike

_____

From: amelyachtowners@...
[mailto:amelyachtowners@...] On Behalf Of Ian Shepherd
Sent: Friday, September 15, 2006 4:19 AM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Head pump



Hi Mike,

I have always had the same problem with the forward head only. I have
changed the joker valve several times, but it makes little difference. I am
told by Amel that the pump up pipe enters the holding tank via a swan neck,
so there should not be any back flow unless the tank is faulty. The only
way to test it might be to pour some dye into the tank and see if it finds
its way back to the toilet bowl.

I believe that in my case it is probably only what's in the pump up pipe
that back flows. As the forward holding tank is situated higher above the
bowl in the forward head than the aft, it may be the higher head of fluid
that is causing my problem.

The only way that I find to make the situation more pleasant is to make sure
that the toilet is well flushed after use so that only sea water comes back
into the bowl.

Good Luck!

Ian Shepherd SM 414 Crusader

-------Original Message-------

From: Mike Ondra
Date: 9/15/2006 2:04:42 AM
To: amelyachtowners@ <mailto:amelyachtowners%40yahoogroups.com>
yahoogroups.com
Subject: [Amel Yacht Owners] Head pump

We are persistently getting backflow of waste water through the check valves

back into the toilet bowl, enough sometimes to fill the bowl. Besides being
unpleasant at anchor, this can be a mess under sail. I would presume (and
hope) this volume represents the waste water from the riser tube only and is

not siphoning out of the holding tank somehow leaking back through the
tricuspid check valve as well as the flapper valve in the pump assembly.
New valve and flapper seemed to retard the problem for a short time only.

Does anyone know what the riser tube looks like inside the holding tank.
Does it simply extend to near the top of the holding tank with an open end
inches below the top of the tank? Or perhaps there is a 180 deg elbow on
top?

Have other faced this and discovered the problem and solution?

Mike Ondra
Aletes - SM 2000 #240


Re: [Amel Yacht Owners] Head pump

Ian Shepherd <ocean53@...>
 

Hi Mike,

I have always had the same problem with the forward head only. I have
changed the joker valve several times, but it makes little difference. I am
told by Amel that the pump up pipe enters the holding tank via a swan neck,
so there should not be any back flow unless the tank is faulty. The only
way to test it might be to pour some dye into the tank and see if it finds
its way back to the toilet bowl.

I believe that in my case it is probably only what's in the pump up pipe
that back flows. As the forward holding tank is situated higher above the
bowl in the forward head than the aft, it may be the higher head of fluid
that is causing my problem.

The only way that I find to make the situation more pleasant is to make sure
that the toilet is well flushed after use so that only sea water comes back
into the bowl.

Good Luck!

Ian Shepherd SM 414 Crusader

-------Original Message-------

From: Mike Ondra
Date: 9/15/2006 2:04:42 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Head pump

We are persistently getting backflow of waste water through the check valves
back into the toilet bowl, enough sometimes to fill the bowl. Besides being
unpleasant at anchor, this can be a mess under sail. I would presume (and
hope) this volume represents the waste water from the riser tube only and is
not siphoning out of the holding tank somehow leaking back through the
tricuspid check valve as well as the flapper valve in the pump assembly.
New valve and flapper seemed to retard the problem for a short time only.

Does anyone know what the riser tube looks like inside the holding tank.
Does it simply extend to near the top of the holding tank with an open end
inches below the top of the tank? Or perhaps there is a 180 deg elbow on
top?

Have other faced this and discovered the problem and solution?

Mike Ondra
Aletes - SM 2000 #240