Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 26-06-2016, 10:02   #1
Registered User

Join Date: Aug 2009
Location: Cruising Florida and Bahamas
Posts: 15
Installing pump out fitting

We have an owners version Fountaine Pajot Beliz 43 catamaran. The holding tank for the owners side does not have a pump out plumbed and the tank is nestled up close to the deck making it difficult to plumb one directly to the tank. I have been wondering if there is any reason I could not just add a tee to the discharge line and run a hose to a pump out fitting that way? Am I overlooking something that would make it a bad idea? This layout would empty the tank as well as the gravity discharge and would sure some mollify plunging. Thoughts?
__________________

__________________
KFuller is offline   Reply With Quote
Old 26-06-2016, 10:33   #2
Marine Service Provider
 
peghall's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Feb 2011
Posts: 1,533
Re: Installing pump out fitting

I have been wondering if there is any reason I could not just add a tee to the discharge line and run a hose to a pump out fitting that way

That will work just fine...in fact, that's how it's done on most tanks that are plumbed for both pump and overboard discharge.

However, I'm thinking that a y-valve MIGHT be better than just a tee...because if you keep the thru-hull open to allow "pass through" flushing at sea, leaving it open during pumpout is likely to pull in sea water... Which MIGHT not be a bad idea because it will rinse out the tank. Let's see what others who have experience with it think.
__________________
2017 Peggie Hall
Specializing in marine sanitation since 1987
Author "The NEW Get Rid of Boat Odors"
https://www.amazon.com/New-Get-Rid-B...dp/1892399784/
peghall is offline   Reply With Quote
Old 26-06-2016, 10:42   #3
Registered User

Join Date: Aug 2009
Location: Cruising Florida and Bahamas
Posts: 15
Re: Installing pump out fitting

Thanks for the quick reply, Peg. On pulling in sea water, remember that these cats discharge above water between the hulls so should not be an issue. Sure will make things simple.
__________________
KFuller is offline   Reply With Quote
Old 30-06-2016, 09:20   #4
Registered User

Join Date: Aug 2010
Posts: 613
Re: Installing pump out fitting

Going to be hard to create the vacuum you need for a pump out if the system is open. If the discharge is underwater, then at best you'll backfill the tank with seawater.

I'd put a Y-valve in place. When set to pump out, will ensure the vacuum is maintained to get proper suction.
__________________
Shrew is offline   Reply With Quote
Old 30-06-2016, 10:10   #5
Marine Service Provider
 
peghall's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Feb 2011
Posts: 1,533
Re: Installing pump out fitting

Tee won't cause any loss of suction because the pumpout can't pull in air from the thru-hull until the level in the tank drops below the top of the thru-hull to let air in...which can't happen until it drops below the top of the discharge fitting in the tank. Suction is broken then even when the tank is only plumbed for pumpout.
__________________
2017 Peggie Hall
Specializing in marine sanitation since 1987
Author "The NEW Get Rid of Boat Odors"
https://www.amazon.com/New-Get-Rid-B...dp/1892399784/
peghall is offline   Reply With Quote
Old 30-06-2016, 10:20   #6
Senior Cruiser
 
Sailmonkey's Avatar

Cruisers Forum Supporter

Join Date: Sep 2009
Location: Houston
Boat: '76 Allied Seawind II, 32'
Posts: 5,774
Re: Installing pump out fitting

I seen no problem with this. It is in fact how my tank is plumbed. The tank gravity discharge has a t fitting one end leads to the overboard thruhull, the other to the deck fitting


Sent from my iPhone using Cruisers Sailing Forum
__________________

__________________
Sailmonkey is offline   Reply With Quote
Reply

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
Installing a fitting to a stainless steel water tank Burge Construction, Maintenance & Refit 15 27-06-2016 12:21
Lipari 41: Fitting belt driven watermaker pump in Lipari Toys_with_time Fountaine Pajot 4 13-04-2014 17:12
Holding tank to manual pump to waste deck fitting summercamp Plumbing Systems and Fixtures 4 19-09-2012 20:51
R-134a standard automotive fitting to 1/4 male fitting? msulc Plumbing Systems and Fixtures 14 07-06-2011 11:02
Macerator Pump to Deck Fitting SV_Windshift Plumbing Systems and Fixtures 34 14-05-2011 08:56



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 12:38.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.