Head Water Intake - SailNet Community
LinkBack Thread Tools
post #1 of 2 Old 06-19-2007 Thread Starter
maddata's Avatar
Join Date: Apr 2007
Posts: 32
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Head Water Intake

I know I should know this, but how much water in impelled with each pump on a Jabsco compact manual marine head? I am curious how much water is actually drawn in with each pump. The manual does not seem to say, perhaps because all pumps are not created equal. Nevertheless, I am just looking for a ballpark since I filled my tank pretty quickly...
maddata is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
post #2 of 2 Old 06-19-2007
Telstar 28
sailingdog's Avatar
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 16 Times in 13 Posts
Rep Power: 14
In my experience, it can vary among the same model of head a bit, depending on the installation and the usage. The length and design of the head intake line can affect it, as can the speed of the pumping. Most of these pumps work best at a moderate rate of speed, rather than the faster pumping that some n00bs trying to flush the head as quickly as possible will use.

Actual use will also vary a bit, depending on how much excess water is pumped to "clear the lines" by each person.

What size is your holding tank, and how long did it take to fill up?? It is sometimes easier to ballpark how long a holding tank will take to fill up on average, than how much water is moved with each flush.


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

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

sailingdog is offline  
Quote Quick Reply Share with Facebook

Quick Reply

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


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

Email Address:


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
Windward performance deseely General Discussion (sailing related) 21 04-01-2012 03:42 PM
Can''t get water in to head BrianConley Gear & Maintenance 2 05-26-2001 08:35 PM
Water Drive Mark Matthews Cruising Articles 0 12-05-1999 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