Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 17-03-2014, 10:09   #1
Registered User
geomicer's Avatar

Join Date: Sep 2013
Location: Newport News, VA
Boat: Hunter 30
Posts: 3
Images: 2
Redundant sea water pump.

Hello. I am hoping to accomplish two things. First I wish to replace the attached sea water cooling pump on my yanmar with something modern and easy to repair/deal with while underway. I am mechanically capable and will deal with mounting etc, I am asking about knowledge on terrific pumps.

Second: I would also like to fit an independent electric pump, as the emergency as well as additional cooling when the attached pump is at idle. Same request here, I am able to handle the plumbing, I am looking for the best pump to deal with in the long term. As a sailboat, if I am using the auxiliary it's for good reason and I wish to be able to continue using it without seawater cooling casualties to worry about.

And if there are colorful stories about seawater cooling along the way, that sounds like fun too. Thank you for reading, so does anyone have a favorite pump?
geomicer is offline   Reply With Quote
Old 19-03-2014, 07:02   #2
Registered User
KDH's Avatar

Join Date: Nov 2009
Location: Carribean
Boat: Wauquiez Centurian 42'
Posts: 271
Re: Redundant sea water pump.

My first question would have to be why you feel you need extra cooling on a small Yanmar in a Hunter 30? We had a Hunter 31 for a few years. I'm sure you have your reasons but may be overthinking the solution a bit. If your Hunter 30 is more than 10 years old, pull and change the mixing elbow instead. Not easy and probably near inaccessible but doable and for more bang for the buck. As for the second question, do you mean you want to go from seawater cooled to closed freshwater system?
KDH is offline   Reply With Quote
Old 19-03-2014, 15:45   #3
Senior Cruiser
hpeer's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: Philadelphia
Boat: Murray 33-Chouette & Pape Steelmaid-44-Safara-both steel cutters
Posts: 4,176
Re: Redundant sea water pump.

IIRC there was this guy who overwintered in the Arctic. On the way there he lost his engine water pump in Thule. He scavenged an electric pump from a school bus, or so the story goes.

I've wondered about this myself but never chased it far.

I like Whale diaphragm pumps, I think on of them would work. GE a Gulper and refit it with nitril diaphragm, it will pump most anything.
hpeer is offline   Reply With Quote

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Redundant Through Hull Fittings... reiner Plumbing Systems and Fixtures 3 29-02-2012 06:41
Raw Water Pump vs Fresh Water Pump Cheechako Engines and Propulsion Systems 44 01-02-2012 14:31
Solar - Go Redundant or Go Big ? capt_douglas Electrical: Batteries, Generators & Solar 26 12-11-2010 09:26
Redundant Standing Rigging boat_alexandra Deck hardware: Rigging, Sails & Hoisting 1 05-09-2010 09:49

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 21:19.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.