Sailboats Fresh Water System? - SailNet Community
 
LinkBack Thread Tools
post #1 of 4 Old 02-19-2007 Thread Starter
Senior Member
 
1970Columbia34's Avatar
 
Join Date: Aug 2006
Location: Bay City, Mi
Posts: 319
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
 
Send a message via AIM to 1970Columbia34 Send a message via MSN to 1970Columbia34 Send a message via Yahoo to 1970Columbia34
Sailboats Fresh Water System?

I was working on putting in new waterlines over the weekend since I am not sure the age of the current ones but they look pretty old and nasty.

I thought the water pump seemed loud so after further investigation its not what I expected to see. Its a Jacbson pump, but it has a motor with small rubber belt that drives a piston like arm up and down to pump a rubber diaphrame. I was expecting to see more of a RV style pump with a line in and out and 2 wires. The pump label says its 3 gpm. Should I swith the pump out for a simpler style RV?

Also the Line coming out of the bottom of the water tank goes to a manual foot pump 1st then to the electric pump what is the reason for this? And on the out line from the electric pump and is what looks like a inline check valve. reason for this?
1970Columbia34 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 4 Old 02-19-2007
moderate?
 
camaraderie's Avatar
 
Join Date: May 2002
Location: East Coast
Posts: 13,877
Thanks: 0
Thanked 6 Times in 6 Posts
Rep Power: 17
     
Columbia..the Jacobsen belt driven pump is excellent as this type of pump can also be run dry. Just be sure you carry a spare belt. We use this type of design for bilge, water & washdown and they have given us better service life than the more typical flo-jet type pumps. You can always swap out but why spend $100+ bucks when you don't need to.
The t-off to your manual foot pump is typical and lets you still get water out of your tank when your electric pump fails. A better arrangment is to T-off a hose with shutoff valve in it and then run that hose to the foot pump.
The check valve you mention may be a pressure valve to hold line pressure and stop the pump from constantly running. Is there an accumulator tank in the system?
camaraderie is offline  
Quote Quick Reply Share with Facebook
post #3 of 4 Old 02-19-2007 Thread Starter
Senior Member
 
1970Columbia34's Avatar
 
Join Date: Aug 2006
Location: Bay City, Mi
Posts: 319
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
 
Send a message via AIM to 1970Columbia34 Send a message via MSN to 1970Columbia34 Send a message via Yahoo to 1970Columbia34
The system is like this


There is no accumulator tank in the system. There is now water in the system now would be the reason for the pump sounding loud? The pump looks like it has a pressure switch on it. I was thinking the check valve was some kind of back flow preventer. I will take your recomendation in the hose setup with the foot pump.
1970Columbia34 is offline  
Quote Quick Reply Share with Facebook
post #4 of 4 Old 02-19-2007
moderate?
 
camaraderie's Avatar
 
Join Date: May 2002
Location: East Coast
Posts: 13,877
Thanks: 0
Thanked 6 Times in 6 Posts
Rep Power: 17
     
The lack of water in the system can account for the additional pump noise. If, with water in the system you still get a lot of noise when pumping you may wish to fit an accumulator tank near the outlet of the electric pump. This should also eliminate the need for a check valve.
http://www.jabsconews.com/english/pr...tank_promo.htm
camaraderie 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
Fresh water system maureena5 Gear & Maintenance 6 03-07-2007 06:34 PM
Fresh Water System Cleaning and Maintenance kcoffey Gear & Maintenance 2 07-13-2004 12:36 PM
Water, Water Everywhere Tania Aebi Cruising Articles 0 06-14-2004 08:00 PM
Refrigeration—Part II Selecting a System Tom Wood Gear and Maintenance Articles 0 05-19-2003 08:00 PM

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