Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 06-07-2014, 02:43   #1
Registered User

Join Date: Jul 2013
Location: Seattle
Boat: Navigator Pilothouse Classic 42'
Posts: 36
Food Waste Disposer

The sink on my boat has two basins, one with a regular drain (that goes to a through-hull above the waterline) and one that goes to an undersink food waste disposer unit (an Insinkerator Badger 5), that has a PVC sanitation hose attached to the output. As far as I can tell, this hose runs to a seacock in the floor of the engine room, below the waterline (photo attached).

The food waste side is backed up; I took the hose off the outlet of the disposal, and can see that any water in it just sits there and doesn't drain out. This is actually what I would expect, if the hose goes to that seacock and there's no pump that would push the food waste down the hose and out an underwater fitting, like a macerator pump from a holding tank to an underwater fitting. I don't think the Insinkerator really creates much pressure to pump anything down, I think it just grinds up the food.

Am I missing something? Is there normally a gray water tank that the food waste disposer would be going to, with its own macerator to pump overboard? Or was this just a poorly thought-out retrofit to the original sink?
Attached Thumbnails
Click image for larger version

Name:	garbage disposal.jpg
Views:	157
Size:	402.8 KB
ID:	84521  
__________________

__________________
GatorDontPlay is offline   Reply With Quote
Old 06-07-2014, 06:14   #2
Registered User

Join Date: Dec 2010
Location: W Carib
Boat: Wildcat 35, Hobie 33
Posts: 7,964
Re: Food Waste Disposer

Unusual to see one installed on a sailboat at all (maybe more common on power vessels?). I don't follow the logic of having one...why is trouble prone plumbing, and significant energy use, necessary to get food scraps overboard? Just toss them overboard. Which is what I suggest doing with this whole set up.
__________________

__________________
belizesailor is online now   Reply With Quote
Old 06-07-2014, 06:31   #3
Senior Cruiser
 
Sailmonkey's Avatar

Cruisers Forum Supporter

Join Date: Sep 2009
Location: Houston
Boat: '76 Allied Seawind II, 32'
Posts: 5,787
Re: Food Waste Disposer

I have never seen a disposal on a boat of any kind, and I've worked on some very large boats!
__________________
Sailmonkey is offline   Reply With Quote
Old 06-07-2014, 15:29   #4
Registered User

Join Date: Jul 2013
Location: Seattle
Boat: Navigator Pilothouse Classic 42'
Posts: 36
Re: Food Waste Disposer

It's not a sailboat - it's a Navigator 4200 Pilothouse Classic (powerboat).

This is what I'm wondering about - whether other recreational power yachts have these, or if it's some kind of weird retrofit a previous owner did. There were some other "customizations" that hadn't been really thought through or tried out... Like adding an ElectroScan MSD with a complex system of hoses and Y valves to be able to route either of the two heads to either the holding tank or the ElectroScan and either the tank or the ElectroScan overboard; in the shuffle of hoses they connected the hose from the deck plate pumpout port to an alternate fitting on the top of the holding tank that didn't have a diptube, meaning I couldn't pump anything out of the tank until I reverse engineered the setup and discovered this error.

Now I'm wondering if anyone actually tried using the disposal more than once. It would be handy (obviously for use while on shore power, I'm a liveaboard) but certainly doesn't seem to be a common thing even on power boats as far as I can tell. I have seen some on the web for commercial boats (where they have a real cafeteria operation going on to feed a large crew) but that's obviously a whole other matter...

Sent from my SM-N900T using Cruisers Sailing Forum mobile app
__________________
GatorDontPlay is offline   Reply With Quote
Old 06-07-2014, 15:40   #5
CF Adviser
Moderator Emeritus
 
Hud3's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: Virginia
Boat: Island Packet 380, now sold
Posts: 8,929
Images: 49
Re: Food Waste Disposer

I don't know about you, but the last thing I'd want to do with food waste is to dump it into the marina's waters.

I frankly can't see any reasonable use for it.
__________________
Hud
Hud3 is offline   Reply With Quote
Old 06-07-2014, 16:03   #6
Registered User

Join Date: Feb 2008
Posts: 2,062
Re: Food Waste Disposer

Quote:
Originally Posted by Hud3 View Post
I don't know about you, but the last thing I'd want to do with food waste is to dump it into the marina's waters.

I frankly can't see any reasonable use for it.
I'm with you. Would never dump food (or anything else other than gray water) in a harbor. If one must dump food overboard, it should be done at sea and in whole chunks so the fish and crabs can make use of it as food. In a harbor, and especially at a dock, it should be brought ashore (organic food scraps separated from recyclable items) as part of the standard marina garbage flow.
__________________
SailFastTri is online now   Reply With Quote
Old 06-07-2014, 16:33   #7
Registered User

Join Date: Dec 2010
Location: W Carib
Boat: Wildcat 35, Hobie 33
Posts: 7,964
Re: Food Waste Disposer

Quote:
Originally Posted by GatorDontPlay View Post
It's not a sailboat - it's a Navigator 4200 Pilothouse Classic (powerboat).

This is what I'm wondering about - whether other recreational power yachts have these, or if it's some kind of weird retrofit a previous owner did. There were some other "customizations" that hadn't been really thought through or tried out... Like adding an ElectroScan MSD with a complex system of hoses and Y valves to be able to route either of the two heads to either the holding tank or the ElectroScan and either the tank or the ElectroScan overboard; in the shuffle of hoses they connected the hose from the deck plate pumpout port to an alternate fitting on the top of the holding tank that didn't have a diptube, meaning I couldn't pump anything out of the tank until I reverse engineered the setup and discovered this error.

Now I'm wondering if anyone actually tried using the disposal more than once. It would be handy (obviously for use while on shore power, I'm a liveaboard) but certainly doesn't seem to be a common thing even on power boats as far as I can tell. I have seen some on the web for commercial boats (where they have a real cafeteria operation going on to feed a large crew) but that's obviously a whole other matter...
As others have posted, for liveaboard use, dumping stuff in the enclosed space of a marina is generally frowned upon. It should go out to the garbage. Making it even less useful for you.

We spend most of our time aboard at anchor, usually in uncrowded places, so food scraps go overboard.

I would dispose of the dispose-all and replumb the MSD.
__________________
belizesailor is online now   Reply With Quote
Old 07-07-2014, 06:39   #8
Senior Cruiser
 
Sailmonkey's Avatar

Cruisers Forum Supporter

Join Date: Sep 2009
Location: Houston
Boat: '76 Allied Seawind II, 32'
Posts: 5,787
Re: Food Waste Disposer

Quote:
Originally Posted by GatorDontPlay View Post
It's not a sailboat - it's a Navigator 4200 Pilothouse Classic (powerboat).
app

Sailboat/powerboat doesn't matter, the way the drains are rigged won't let this work properly. The 112' motor yacht I worked on didn't have one either. The big commercial units aren't even mounted in the sink, hell they're not even indoors!
__________________
Sailmonkey is offline   Reply With Quote
Old 09-07-2014, 03:04   #9
Registered User

Join Date: Jul 2013
Location: Seattle
Boat: Navigator Pilothouse Classic 42'
Posts: 36
Re: Food Waste Disposer

So I just saw a newer version (2003 instead of '96) of basically the same boat (Navigator 45), and it had an under-sink disposal also, making me think it was maybe standard rather than some weird retrofit...

Sent from my SM-N900T using Cruisers Sailing Forum mobile app
__________________
GatorDontPlay is offline   Reply With Quote
Old 09-07-2014, 06:11   #10
Writing Full-Time Since 2014
 
thinwater's Avatar

Join Date: Nov 2008
Location: Deale, MD
Boat: PDQ Altair, 32/34
Posts: 4,350
Re: Food Waste Disposer

The practical problem is that most disposers will clog if without substancial water flow to rinse the food through, and wasting water on a boat is impractical.

Remove it.
__________________
Gear Testing--Engineering--Sailing

Writing full-time since 2014.
Bookstore:http://sail-delmarva.blogspot.com/20...ook-store.html
thinwater is offline   Reply With Quote
Old 10-07-2014, 00:16   #11
Registered User

Join Date: Jul 2013
Location: Seattle
Boat: Navigator Pilothouse Classic 42'
Posts: 36
Re: Food Waste Disposer

Quote:
Originally Posted by thinwater View Post
The practical problem is that most disposers will clog if without substancial water flow to rinse the food through, and wasting water on a boat is impractical.

Remove it.
Water pressure and supply is not so much an issue at the dock -- the boat also has a water inlet + regulator for direct hookup, turn off the water tank pump and leave the shore tap open and you have pretty good pressure.

I get the others' points on not spitting out food scraps into the water at the marina; seems like it could make sense though if it went to a holding tank that could be emptied, especially if it had a mesh "catch" basket that would let the gray water pass through and then periodically be emptied/carried to the compost bin on the dock along with any other food scraps that didn't go down the disposal.
__________________
GatorDontPlay is offline   Reply With Quote
Old 12-07-2014, 08:18   #12
Registered User

Join Date: Aug 2009
Location: Hudson Valley N.Y.
Boat: contessa 32
Posts: 826
Re: Food Waste Disposer

SEA GULLS
__________________
mrohr is offline   Reply With Quote
Old 12-07-2014, 12:23   #13
Registered User
 
ranger42c's Avatar

Join Date: Aug 2012
Location: Maryland, USA
Boat: 42' Sportfish
Posts: 2,985
Re: Food Waste Disposer

Quote:
Originally Posted by thinwater View Post
The practical problem is that most disposers will clog if without substancial water flow to rinse the food through, and wasting water on a boat is impractical.

Yeah, SOP for our household units has always been running water when the disposal is on, continue running water after the disposal is off to rinse the chopper, line, etc.

In our current household, we've discovered we have to remember to use the thing at least periodically... just to keep it from freezing up, and then needing a manual twist on the axle.

-Chris
__________________

__________________
Selby Bay, South River, Chesapeake Bay, USA.
ranger42c is offline   Reply With Quote
Reply

Tags
food

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
Food - Beautifuly Cooked Food feelsgood Liveaboard's Forum 10 04-11-2009 11:46
Waste Oil Heater for a boat Chief Engineer Plumbing Systems and Fixtures 1 17-10-2008 10:53
Oily Waste Management markpj23 Engines and Propulsion Systems 13 04-06-2007 13:37
Waste Tank and Hose Replacement Project Latitude9.5 Plumbing Systems and Fixtures 5 06-08-2006 12:26
Metric waste fittings Will Burton Construction, Maintenance & Refit 5 02-09-2005 00:27



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 20:07.


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.