Raw water pump flow warning buzzer? - SailNet Community
 
LinkBack Thread Tools
post #1 of 10 Old 09-08-2013 Thread Starter
Senior Member
 
Dave_E's Avatar
 
Join Date: Aug 2013
Location: Everett, WA
Posts: 698
Thanks: 42
Thanked 24 Times in 24 Posts
Rep Power: 3
 
Raw water pump flow warning buzzer?

Hi All,

I was looking at the engine control panel today, everything on there except a warning for intake cooling water flow. It would only take an in-line flow switch, a buzzer and a protected voltage source. Has anyone installed something like this or ever seen it installed. Yes, we're talking about a caution system to help prevent equipment damage for those of us who may be or get forgetful in our twilight years.

Dave

Allmand Sail 31 #15 "Traveler"
GOD, Family, career
Dave_E is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 10 Old 09-08-2013
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 16,567
Thanks: 110
Thanked 320 Times in 305 Posts
Rep Power: 10
     
Re: Raw water pump flow warning buzzer?

These are rare, certainly not a normal factory item either from the engine manufacturer or the boat builder..

As you say it would be simple enough, assuming an appropriately sized (line size and voltage) flow switch can be readily found. You should be able to tie it into the existing multi-point buzzer cct if you can puzzle that out and tie into it.

A pressure switch might be more easily found, more easily installed, and as effective.

EDIT.. belay that last.. it wouldn't detect a plugged passage, as pressure would still be there.. 'doh...

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
Quote Quick Reply Share with Facebook
post #3 of 10 Old 09-08-2013
Senior Member
 
overbored's Avatar
 
Join Date: Oct 2010
Location: Dana Point, Ca
Posts: 1,272
Thanks: 1
Thanked 73 Times in 73 Posts
Rep Power: 5
 
Re: Raw water pump flow warning buzzer?

there are systems you can buy that do this. this is one of the companies AQUALARM :: OnLine Store :: Comersus.
don't really see the need as temperature is whats important and if that is not satisfied then you look for the problem

"FULL TILT II" 2011 BENETEAU FIRST 30
"FULL TILT" SOVEREL 33
"GOLD RUSH" PRINDLE 16
overbored is offline  
Quote Quick Reply Share with Facebook
post #4 of 10 Old 09-08-2013
Senior Member
 
Join Date: Jul 2013
Location: Miami Florida
Posts: 137
Thanks: 0
Thanked 9 Times in 8 Posts
Rep Power: 3
 
Re: Raw water pump flow warning buzzer?

The Aqualarm system works well and it can prevent damage to the impeller of your raw water pump if the intake gets blocked.
When the overheat alarm goes off your impeller is already in little pieces caught in the heat exchanger.
hopcar is offline  
Quote Quick Reply Share with Facebook
post #5 of 10 Old 09-08-2013
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 16,567
Thanks: 110
Thanked 320 Times in 305 Posts
Rep Power: 10
     
Re: Raw water pump flow warning buzzer?

Quote:
Originally Posted by hopcar View Post
The Aqualarm system works well and it can prevent damage to the impeller of your raw water pump if the intake gets blocked.
When the overheat alarm goes off your impeller is already in little pieces caught in the heat exchanger.
One of our cruising flotilla boats this past summer could've used such a system.. somehow they lost their impeller, didn't notice until they melted their (plastic) waterlift.. They lost a week waiting for parts.

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
Quote Quick Reply Share with Facebook
post #6 of 10 Old 09-08-2013
me at 67!
 
deniseO30's Avatar
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 6,970
Thanks: 55
Thanked 126 Times in 115 Posts
Rep Power: 10
   
Re: Raw water pump flow warning buzzer?

I'd look on things swimming pool heaters, on demand water heaters; to find flow switches.
They are pretty common items in plumbing supply. Most us a paddle and can be set/obtained to on or off with flow.

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

My last project!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


My boat is sold!
deniseO30 is offline  
Quote Quick Reply Share with Facebook
post #7 of 10 Old 09-08-2013 Thread Starter
Senior Member
 
Dave_E's Avatar
 
Join Date: Aug 2013
Location: Everett, WA
Posts: 698
Thanks: 42
Thanked 24 Times in 24 Posts
Rep Power: 3
 
Re: Raw water pump flow warning buzzer?

Quote:
Originally Posted by overbored View Post
there are systems you can buy that do this. this is one of the companies AQUALARM :: OnLine Store :: Comersus.
don't really see the need as temperature is whats important and if that is not satisfied then you look for the problem
That's what I'm talking about! Thank you for the reply! Dave

Allmand Sail 31 #15 "Traveler"
GOD, Family, career
Dave_E is offline  
Quote Quick Reply Share with Facebook
post #8 of 10 Old 09-08-2013
Dirt Free
 
boatpoker's Avatar
 
Join Date: Jul 2008
Location: Toronto
Posts: 1,170
Thanks: 9
Thanked 33 Times in 32 Posts
Rep Power: 8
 
Re: Raw water pump flow warning buzzer?

We installed an Aqualarm raw water flow detector about 15yrs. ago (photo below). It saved us the very next day when a hose let go. They are far superior to overheat alams as their response is instantaneous. I would not be without one.
Attached Thumbnails
Aqualarm fow detector.jpg  

Dirt People Scare me
boatpoker is offline  
Quote Quick Reply Share with Facebook
post #9 of 10 Old 09-08-2013
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 16,567
Thanks: 110
Thanked 320 Times in 305 Posts
Rep Power: 10
     
Re: Raw water pump flow warning buzzer?

Hmmm.. at about $150 or so incl panel, make one wonder why every boat doesn't have one...

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
Quote Quick Reply Share with Facebook
post #10 of 10 Old 09-08-2013
Dirt Free
 
boatpoker's Avatar
 
Join Date: Jul 2008
Location: Toronto
Posts: 1,170
Thanks: 9
Thanked 33 Times in 32 Posts
Rep Power: 8
 
Re: Raw water pump flow warning buzzer?

I don't have a panel. I wired it directly to my ignition switch and bought an alarm buzzer from Radio Shack for $3. I think the flow detector cost $80.00 for the 1 1/2" intake on my engine and the one for my genny was $50.00 as it is only 1" intake.

Pretty sure I bought them on Amazon as they were cheaper than the prices on the Aqualarm website.

Dirt People Scare me
boatpoker is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
water flow GPM per HP of an engine? deniseO30 Diesel 14 05-06-2012 11:31 AM
Water flow issues Omatako Gear & Maintenance 6 03-21-2011 01:33 AM
Cooling water over temp light and buzzer DoraPearl09 Electrical Systems 5 10-21-2009 08:33 PM
Universal/ Westerbeke Warning Buzzer 1970Columbia34 Gear & Maintenance 1 06-16-2009 10:14 AM
Water Pump Flow Rate Volvo MD11C ?? tbmutter Gear & Maintenance 1 05-28-2009 09:41 AM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome