Reply
 
Thread Tools Display Modes
 
Old 05-23-2014, 04:31 PM   #21
Guru
 
City: North Charleston, SC
Country: USA
Join Date: Sep 2010
Posts: 4,390
Quote:
Originally Posted by HopCar View Post
George, in most cases you'd need a seacock or valve on the sewage discharge anyway. Some silly law about locking the valve. .
I installed a key switch in the macerator circuit. No key, no pumpout.
__________________
Advertisement

rwidman is offline   Reply With Quote
Old 05-23-2014, 04:31 PM   #22
Guru
 
City: Tuckerton, NJ
Country: USA
Vessel Name: WIRELESS ONE
Vessel Model: 36 Gulstar MarkII
Join Date: Mar 2011
Posts: 937
Quote:
Originally Posted by rwidman View Post
Bronze thru-hull instead of plastic or nylon, seacock, extra sanitation hose for the loop and the anti-siphon device (the exact name escapes me at the moment). And the labor and space for the extra components and loop.

My macerator outlet connects with about a foot of sanitation hose to a $20 thru-hull. A couple of clamps and that's it. There's no possible failure that would endanger the boat.
That will work Ron.
Bill
__________________

Billylll is offline   Reply With Quote
Old 05-23-2014, 06:55 PM   #23
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in Crisfield, MD
Country: USA
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 4,820
Ok, maybe I should have offered a little more Information. I'm in the yard now doing the engine swap and exterior paint job. My single engine boat has 5 seacocks . Most were put in really bad spots, easy to trip over or centered in an ideal storage area. The goal is to reduce the number and relocate ones that waste a great deal of space. 4 of the 5 will either be eliminated or relocated. While doing it properly takes time, filling 4 holes isn't 4 times the time of 1. My lazeret has the waste seacock in the middle of the starboard side. I'm not going to stack a spare anchor, fenders, ect. on top of it; not willing to give up the space. May compromise and go through the transom, just above the hull, behind the rudder. Would really rather have it above the water line. Mine has the loop above the water line with the siphon break.

Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is offline   Reply With Quote
Old 05-24-2014, 05:38 AM   #24
TF Site Team
 
Bay Pelican's Avatar
 
City: Chicago, IL
Country: USA
Vessel Name: Bay Pelican
Vessel Model: Krogen 42
Join Date: Oct 2007
Posts: 2,794
Quote:
Originally Posted by Moonstruck View Post
Marty, I think you probably omitted "vented loop". This is an important distinction because the vent breaks the siphoning action that can still flood the boat.

For those not familiar, here is a kind of primer on vented loops.

Vented loops and anti-siphon valves ; how they work on boats
You are right about the vented loop. Bay Pelican came without a vent on the blackwater discharge and unless I could vent it outside the boat I doubt I would have put one in.
__________________
Marty
Bay Pelican is online now   Reply With Quote
Old 05-24-2014, 01:23 PM   #25
Senior Member
 
Vashon_Trawler's Avatar
 
City: St. Petersburg, Florida
Country: USA
Vessel Name: M/V Sherpa
Vessel Model: 24' Vashon Diesel Cruiser
Join Date: Jun 2013
Posts: 426
Below the waterline for my boat--builder installed and works well.
__________________
Go small, go simple, go now
― Larry Pardey, Cruising in Seraffyn
Vashon_Trawler is offline   Reply With Quote
Old 05-25-2014, 07:59 AM   #26
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,534
The best vented loop has a line from the vent up as high as can easily be done.

The vents with just a check valve are subject to waste pushing the valve closed , which requires the valve to be frequently cleaned , to be of any safety value.
FF is offline   Reply With Quote
Old 05-25-2014, 08:59 AM   #27
Guru
 
psneeld's Avatar
 
City: Avalon, NJ
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 15,920
Quote:
Originally Posted by FF View Post
The best vented loop has a line from the vent up as high as can easily be done.

The vents with just a check valve are subject to waste pushing the valve closed , which requires the valve to be frequently cleaned , to be of any safety value.
...just yesterday I caught my OEM vented loop back siphoning....my dry bilge wasn't so dry...
psneeld is online now   Reply With Quote
Old 05-25-2014, 08:33 PM   #28
Senior Member
 
City: Hong Kong
Country: Hong Kong
Join Date: Nov 2012
Posts: 210
CA design guidance for BW tanks and pump-out

Here is an easy reading document about piping, tanks and thru-hulls for holding tanks located below the waterline.

http://www.dem.ri.gov/programs/benvi...s/podesign.pdf

If the bottom of your holding tank is above the waterline then a siphon break should not be required since the vent line from the holding tank will do the "siphoning"
Searios is offline   Reply With Quote
Old 05-25-2014, 08:46 PM   #29
Senior Member
 
magicbus's Avatar
 
Join Date: Nov 2010
Posts: 460
Quote:
Originally Posted by O C Diver View Post
My single engine boat has 5 seacocks
Ted
Hmmm... main.. genset...a/c...freezer...black tank... plumbed watermaker not installed.. salt water washdown.... plus a get-home. 5 doesn't seem so overboard!

Dave
__________________
Barnegat Light NJ or Nantucket MA
magicbus is offline   Reply With Quote
Old 05-25-2014, 09:58 PM   #30
Veteran Member
 
sailormike's Avatar
 
City: Wrightsville Beach, North Carolina
Country: USA
Vessel Name: Miss Dot Dee
Vessel Model: 1980 29' Prairie Trawler
Join Date: Jul 2010
Posts: 54
our macerator pumps through a through hull mounted 1-2 inches above the waterline. We use plenty of wales chemical which dyes the waste a deep dark blue and keeps odors down.
sailormike is offline   Reply With Quote
Old 05-26-2014, 07:43 AM   #31
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,534
We use plenty of wales chemical which dyes the waste a deep dark blue and keeps odors down.

Be sure never to discharge into a home style waste system with septic tank and waste field.

The >no stink< chemicals will kill whats in the septic tank , which then destroyes the leach field, requiring its replacement.
FF is offline   Reply With Quote
Old 05-26-2014, 09:56 AM   #32
Guru
 
City: Tuckerton, NJ
Country: USA
Vessel Name: WIRELESS ONE
Vessel Model: 36 Gulstar MarkII
Join Date: Mar 2011
Posts: 937
I would never recomend a deoderrizing chemical. Something Enzyme based is better because your waste tank odors are almost -0-. Use a natural enhancer like OdorL0S treatment instead this assumes your holding tank is well vented.
Bill
Billylll is offline   Reply With Quote
Old 05-26-2014, 09:38 PM   #33
Veteran Member
 
sailormike's Avatar
 
City: Wrightsville Beach, North Carolina
Country: USA
Vessel Name: Miss Dot Dee
Vessel Model: 1980 29' Prairie Trawler
Join Date: Jul 2010
Posts: 54
Quote:
Originally Posted by FF View Post
We use plenty of wales chemical which dyes the waste a deep dark blue and keeps odors down.

Be sure never to discharge into a home style waste system with septic tank and waste field.

The >no stink< chemicals will kill whats in the septic tank , which then destroyes the leach field, requiring its replacement.

sorry damn autocorrect i meant to Say Walex chemical which is biodegradable environmentally friendly and septic safe it is the same stuff that all the portable toilet companies use. its great stuff. I have been through the plant and have used there products in many applications no I'm not paid by them just like there products
sailormike is offline   Reply With Quote
Old 05-27-2014, 06:51 AM   #34
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,534
I have been through the plant and have used there products in many applications no I'm not paid by them just like there products

Try looking up the old poisonous chemical, and then google the new stuff , many times its just a different name for the same basic chemical package.

Green BS sells , so the RV industry has renamed and repackaged most no stink for waste systems.


A better vented holding tank, (on a large vessel air may need to be pumped ), will usually make the aromas leave.

WE have used chlorine pellets (swimming pool supply) to temp solve a problem on deliveries..

The chlorine evaporates and wont destroy septic fields.
FF is offline   Reply With Quote
Old 05-27-2014, 07:42 AM   #35
Guru
 
N4712's Avatar
 
City: South FL
Country: U.S.A
Vessel Name: Oliver
Vessel Model: Nordhavn 47 Hull# 12
Join Date: Apr 2013
Posts: 3,613
Waste Overboard Port

We have both grey water and black water discharge under the waterline, both with siphon breaks above waterline.
__________________
Thanks, Oliver
M/V Oliver
Nordhavn 47 Hull #12
N4712 is offline   Reply With Quote
Old 05-27-2014, 08:15 AM   #36
Guru
 
dhmeissner's Avatar
 
City: Seattle
Country: North America
Vessel Name: The Promise
Vessel Model: Roughwater 35
Join Date: Sep 2012
Posts: 1,326
Our black water discharge is below the waterline. Grey water just at the waterline at the boot stripe.
__________________
Dave & Suzie - Roughwater 35
http://thepromiserwb1029.org/2012/09...the-promise-2/
dhmeissner is offline   Reply With Quote
Old 05-27-2014, 09:25 AM   #37
Guru
 
City: North Charleston, SC
Country: USA
Join Date: Sep 2010
Posts: 4,390
Quote:
Originally Posted by Billylll View Post
I would never recomend a deoderrizing chemical. Something Enzyme based is better because your waste tank odors are almost -0-. Use a natural enhancer like OdorL0S treatment instead this assumes your holding tank is well vented.
Bill
That's what I use and don't have an odor problem. Of course if you go this route you can't mix chemicals or bleach with the natural product, that will stop it from working. You have to go one way or the other.

As with any product, read and follow the manufacturer's instructions.
rwidman is offline   Reply With Quote
Old 05-27-2014, 10:08 AM   #38
Guru
 
City: North Charleston, SC
Country: USA
Join Date: Sep 2010
Posts: 4,390
Quote:
Originally Posted by sailormike View Post
our macerator pumps through a through hull mounted 1-2 inches above the waterline. We use plenty of wales chemical which dyes the waste a deep dark blue and keeps odors down.
What's the point in coloring poop deep blue? It's still poop.
rwidman is offline   Reply With Quote
Old 05-27-2014, 02:31 PM   #39
Guru
 
Northern Spy's Avatar
 
City: Powell River, BC
Country: Canada
Vessel Name: Northern Spy
Vessel Model: Nordic Tug 26
Join Date: Feb 2012
Posts: 2,672
Quote:
Originally Posted by rwidman View Post
What's the point in coloring poop deep blue? It's still poop.
Lingering effects from the Ty-D-Bol commercials perhaps?

I loved those commercials as a kid.
Northern Spy is online now   Reply With Quote
Old 05-27-2014, 03:05 PM   #40
Enigma
 
RT Firefly's Avatar
 
City: Slicker?
Country: Bumpkin?
Join Date: Oct 2007
Posts: 9,996
Greetings,
Ty-D-Bol??????
__________________

__________________
RTF
RT Firefly is online now   Reply With Quote
Reply

Thread Tools
Display Modes

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





All times are GMT -5. The time now is 09:08 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012