Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 21-02-2016, 10:48   #16
Dockhead's Avatar

Cruisers Forum Supporter

Join Date: Mar 2009
Location: [S]Hamble (Spring and Fall)[/S], Cowes (Winter), Baltic (Summer) (the boat!); somewhere in the air (me!)
Boat: Cutter-Rigged Moody 54
Posts: 16,443
Re: Dewatering Pump

Originally Posted by leftbrainstuff View Post
That's quite a beast. Similar and much larger navy damage control pumps are all mechanically driven for reliability and portability. I couldnt follow the link. I assume its powered from a mains AC supply.

2.2kW will overwhelm your average cruising yacht inverter. That is also quite a load for the average genset.

What size inverter, battery bank and genset are you using?

We certainly couldn't run that pump with our 2500W inverter, 675Ahr battery bank or 1cyl 6kW genset with a 130A 12V alternator.

Sent from my SM-N900T using Cruisers Sailing Forum mobile app

Yes, this is not a solution for everyone.

Every power source has certain pluses and minuses, and certain risks that it won't work when you need it. You might not be able to start the engine of an engine-driven pump; you might not be able to get electrical power into an electric one.

Our particular boat, which may be different from others, has a robust AC power supply which can power that beast fairly easily. The generator is a 6.5kW Kohler 3-cylinder heavy duty one. Actually a derated 8kW generator with a 1000cc Yanmar engine. It won't even notice a 2.2kW load. It will put out 6.5kW 24/7/365 -- literally, as it's rated as prime power -- for continuous duty at 100% rated capacity.

That's what my money is on if the chips are down. It lives high above the waterline and would not get swamped until the boat is already basically sunk.

I could also power it from the inverter (3000 watts, from a 420 amp/hours @ 24v battery bank or from the 2.5kW school bus alt on the main engine).

For my particular system, that seems a better bet then an engine-powered one.

Dockhead is online now   Reply With Quote
Old 21-02-2016, 11:42   #17
Registered User
rognvald's Avatar

Join Date: Jan 2011
Location: Great Lakes
Boat: Pearson 34-II
Posts: 1,838
Images: 1
Re: Dewatering Pump

"Anyone who has ever used a bilge pump in anger knows that they quickly clog up, because flooding washes all kinds of carp out of even the cleanest bilge."

If you are a sporting man, may I suggest using dough-balls mixed with peanut butter or perhaps canned corn . . . it's the best bait for carp I know! Good luck and tight lines! P.S. be careful not too set the hook too hard . . . they have a soft mouth, you know.

"And those who were seen dancing were thought to be insane by those who could not hear the music."
Friedrich Nietzsche, Thus Spake Zarathrustra
rognvald 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
Pump, Pump, No Pump ...Repeat and ...Die Capn Bri Plumbing Systems and Fixtures 17 23-12-2015 21:46
Manual Pump for Holding Tank Pump Out at Sea pressuredrop Plumbing Systems and Fixtures 19 23-03-2014 20:41
Dewatering Pumps capngeo Construction, Maintenance & Refit 2 26-09-2013 19:06
emergency dewatering Cheechako Plumbing Systems and Fixtures 2 09-03-2012 12:27
Gulper 320 Pump and Urchin Bilge Pump in Series ? bmartinsen Plumbing Systems and Fixtures 1 20-04-2010 20:14

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 05:31.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.