Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 19-03-2013, 18:27   #1
Marine Service Provider
 
Emmalina's Avatar

Join Date: Jan 2012
Location: Thailand
Boat: Herreshoff Caribbean 50
Posts: 482
Manifolds the way forward

When I bought my boat it had no fewer then 14 thru hulls below the water line.... In varying states.
I figured that one thru hull and a manifold was the way forward.
I believe it is. I can now isolate anything I want and get water to whatever I want.
I manage to run everything through a 2" thru hull and manifold array.
This includes 2 air-cons a Perkins 6354 and a gen-set not to mention water maker,heads and fridge.
If I have any problems I have ONE sea cock to close and one strainer to clean.
My point is why don't commercial builders do this. !!
Best thing I ever did.
__________________

__________________
Steve .. It was the last one that did this !
Emmalina is offline   Reply With Quote
Old 19-03-2013, 18:37   #2
Moderator
 
nigel1's Avatar

Cruisers Forum Supporter

Join Date: Oct 2009
Location: Manchester, UK
Boat: Beneteau 473
Posts: 5,183
Re: Manifolds the way forward

OK, I'll bite, so you have the discharge from the heads/holding tank connected to the water maker intake
__________________

__________________
Nigel
Beneteau 473
Manchester, UK
nigel1 is offline   Reply With Quote
Old 19-03-2013, 18:40   #3
Marine Service Provider
 
Emmalina's Avatar

Join Date: Jan 2012
Location: Thailand
Boat: Herreshoff Caribbean 50
Posts: 482
Re: Manifolds the way forward

Sorry you lost me there Nigel
I have a black tank that i can pump out
But the heads are fed for flushing only not much chance of a back up...
__________________
Steve .. It was the last one that did this !
Emmalina is offline   Reply With Quote
Old 19-03-2013, 18:57   #4
Registered User

Join Date: Jan 2012
Posts: 1,172
Images: 15
Re: Manifolds the way forward

It's not anything new, water manifold is called a 'sea chest' if I recall...
__________________
tamicatana is offline   Reply With Quote
Old 19-03-2013, 19:07   #5
Registered User
 
NahanniV's Avatar

Join Date: Mar 2011
Location: On the Boat
Boat: Finnsailer 38
Posts: 1,143
Re: Manifolds the way forward

I thought about doing this when I replaced my through-hulls, but didn't.

Seems to me it's a trade off between a single seacock and long runs of seawater filled hose inside the boat.

I also had concerns about winterizing all that hose.
__________________
NahanniV is online now   Reply With Quote
Old 19-03-2013, 19:07   #6
Marine Service Provider
 
Emmalina's Avatar

Join Date: Jan 2012
Location: Thailand
Boat: Herreshoff Caribbean 50
Posts: 482
Re: Manifolds the way forward

Not saying its anything new just wondered why manufacturers didn't use them.
Sea chest Manifold or Distribution system. Sure they have many other names.
Or does everybody profit from popping more holes in the hull ?
__________________
Steve .. It was the last one that did this !
Emmalina is offline   Reply With Quote
Old 19-03-2013, 19:18   #7
Marine Service Provider
 
Emmalina's Avatar

Join Date: Jan 2012
Location: Thailand
Boat: Herreshoff Caribbean 50
Posts: 482
Talking Re: Manifolds the way forward

Quote:
Originally Posted by NahanniV View Post
I thought about doing this when I replaced my through-hulls, but didn't.

Seems to me it's a trade off between a single seacock and long runs of seawater filled hose inside the boat.

I also had concerns about winterizing all that hose.
Not really a problem here in the tropics
__________________
Steve .. It was the last one that did this !
Emmalina is offline   Reply With Quote
Old 19-03-2013, 19:42   #8
֍֎֍֎֍֎֍֎֍֎

Cruisers Forum Supporter

Join Date: Apr 2006
Posts: 13,033
Re: Manifolds the way forward

"My point is why don't commercial builders do this."
Actually I think commercial boatbuilders DO.

It is the mass-market folks building them by hand to a price for the recreational market that don't. Because organization costs money, planning costs money, the sea chest costs money, and anything "different" scares away the mass market buyer.
__________________
hellosailor is offline   Reply With Quote
Old 19-03-2013, 20:41   #9
Senior Cruiser
 
FSMike's Avatar

Cruisers Forum Supporter

Join Date: Aug 2009
Location: Bahamas/Florida
Boat: Solaris Sunstar 36' catamaran
Posts: 2,654
Images: 5
Re: Manifolds the way forward

A few things have always puzzled me about manifolds/sea chests -

When I start my engine, I am in the habit of looking at the overboard discharge to make sure the cooling system is pumping water. How can I tell if the air conditioner or gen set or something else is already running water through?
If I had an air conditioner lol.

Secondly, I always thought it a good thing for bilge pumps to have their own through hulls so one would know when they kicked on. And how often.

?
Mike
__________________
Sail Fast Live Slow
FSMike is offline   Reply With Quote
Old 19-03-2013, 20:44   #10
Registered User
 
funjohnson's Avatar

Join Date: Mar 2010
Location: Currently Indiantown FL
Boat: 37' aluminum pilothouse "Elements"
Posts: 1,847
How often does a properly installed and made Seacock actually fail? It seems it's typically the hose or clamps that fail and the boat goes down. Does this manifold actually eliminate any danger? Even if all the items (engine, water maker, head intake) are close to each other, you now have most likely added more hose and a manifold to the possible failure point. The only benefit I see is having one seacock to close in case of a leak or when you leave to boat.

I thought of doing the same thing, but decided to instead install top rated hose, clamps and make sure all my thru hulls/ seacocks were in good shape.
__________________
MJSailing.com - Written Blog
Youtube MJ sailing - Vlog
funjohnson is online now   Reply With Quote
Old 19-03-2013, 20:52   #11
Registered User

Join Date: Dec 2009
Posts: 3,016
Images: 4
Re: Manifolds the way forward

Quote:
Originally Posted by FSMike View Post
Secondly, I always thought it a good thing for bilge pumps to have their own through hulls so one would know when they kicked on.
Shouldn't bilge pumps discharge above the waterline? Similarly it is good if as many outlets as possible discharge above the waterline. 5 underwater thru-hulls here...
__________________
daddle is offline   Reply With Quote
Old 19-03-2013, 21:00   #12
Elvish meaning 'Far-Wanderer'
 
Palarran's Avatar

Cruisers Forum Supporter

Join Date: Jan 2008
Location: Me - Michigan / Boat - Tenerife
Boat: 56' Fountaine Pajot Marquises
Posts: 2,641
Re: Manifolds the way forward

Emmalina is talking about intakes - not discharge outlets.

I think it is a good idea. I've blocked off 9 thru-hulls so far. Now I only have one located in our main hull area, 4 in one engine compartment and 2 in the other. I probably won't bother to change them but if building from new, agree with you. Why not?
__________________
Not all who wander are lost

http://www.sailblogs.com/member/palarran/
Palarran is offline   Reply With Quote
Old 19-03-2013, 21:16   #13
Senior Cruiser
 
FSMike's Avatar

Cruisers Forum Supporter

Join Date: Aug 2009
Location: Bahamas/Florida
Boat: Solaris Sunstar 36' catamaran
Posts: 2,654
Images: 5
Re: Manifolds the way forward

Quote:
Originally Posted by Palarran View Post
Emmalina is talking about intakes - not discharge outlets.
Aah - the light dawns. A minor detail I never picked up on. Thanks.
__________________
Sail Fast Live Slow
FSMike is offline   Reply With Quote
Old 19-03-2013, 21:55   #14
Registered User
 
mischief's Avatar

Join Date: Mar 2009
Location: Port Stephens Australia
Boat: Nantucket 33
Posts: 221
Does anyone have some good schematics of a typical sailboat set up using a manifold or sea chest.
I know we used them for fire/bilge systems on commercial vessels but they still had multiple thru hulls. I'm also an advocate of having less holes below the water line (I would have said holes in the boat but I just finished cutting 12 descent size holes in the deck for all my dorades; cowls and mushroom vents). ;-)
__________________
mischief is offline   Reply With Quote
Old 19-03-2013, 21:55   #15
Senior Cruiser
 
atoll's Avatar

Cruisers Forum Supporter

Join Date: Mar 2010
Location: gettin naughty on the beach in cornwall
Boat: 63 custom alloy sloop,macwester26,prout snowgoose 37 elite catamaran!
Posts: 9,311
Images: 75
Re: Manifolds the way forward

Quote:
Originally Posted by funjohnson View Post
How often does a properly installed and made Seacock actually fail? It seems it's typically the hose or clamps that fail and the boat goes down. Does this manifold actually eliminate any danger? Even if all the items (engine, water maker, head intake) are close to each other, you now have most likely added more hose and a manifold to the possible failure point. The only benefit I see is having one seacock to close in case of a leak or when you leave to boat.

I thought of doing the same thing, but decided to instead install top rated hose, clamps and make sure all my thru hulls/ seacocks were in good shape.
+1
__________________

__________________
my catamaran building project updates http://www.cruisersforum.com/forums/...36#post2502136
atoll is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 12:47.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.