Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 07-01-2012, 05:50   #1
Registered User
 
Blissopia's Avatar

Join Date: Jan 2012
Location: NJ
Boat: Pearson 422, 42ft
Posts: 31
Macerator or Manual Pump ?

My head currently drains into a holding tank or straight overboard. I would like to have the ability to pump out the holding tank myself (when offshore).
I understand how to correctly set up the plumbing but I'm torn between installing a macerator pump or a manual pump. Macerators don't seem to get favorable reviews when it comes to reliability and reliability is my #1 requirement.
What do you all think? Am I wrong about the reliability of macerators? Which way should I go?
__________________

__________________
Blissopia is offline   Reply With Quote
Old 07-01-2012, 05:53   #2
Registered User

Join Date: Feb 2009
Location: Tampa, Florida
Boat: Sud Composites Switch 51 Grand Cruiser
Posts: 113
Re: Macerator or manual pump?

We have macerators in both of our heads and have never had a problem in the six years we've had the boat. Ours are made by Jabsco.
__________________

__________________
rockerdar is offline   Reply With Quote
Old 07-01-2012, 06:10   #3
Don't ask if you can't handle it
 
sailorboy1's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: On the boat somewhere
Boat: Hunter 410
Posts: 12,311
Re: Macerator or manual pump?

As far as reliability it's probably a wash between the 2 because blockage is the main problem either way. If a big manual pump like a Whale that is probably the most reliable. But really the macerator pump is pretty reliable overall.
Never have any problem with the macerator on my current boat, but never have any problem with the manual pump on the last pump.
__________________
jobless, houseless, clueless, living on a boat and cruising around somewhere
sailorboy1 is offline   Reply With Quote
Old 07-01-2012, 07:00   #4
Senior Cruiser
 
Sailmonkey's Avatar

Cruisers Forum Supporter

Join Date: Sep 2009
Location: Houston
Boat: '76 Allied Seawind II, 32'
Posts: 5,774
Re: Macerator or manual pump?

go with an electric diaphram.....less prone to clogging than a rotating macerator, and better than pumping #2 for 20 minutes of an already short life
__________________
Sailmonkey is online now   Reply With Quote
Old 07-01-2012, 07:05   #5
Marine Service Provider
 
Scott Berg's Avatar

Join Date: Jul 2011
Location: Aboard
Boat: Seaton 60' Ketch
Posts: 959
Talk a look at the Sealand "T" pump. Its a bellows pimp that can make short work of a holding tank and is as bullet proof as an electric pump can be.

Disclaimer: We sell a range of pumps including these.

Scott
__________________
Scott Berg
WALSS
SV CHARDONNAY
Scott Berg is offline   Reply With Quote
Old 07-01-2012, 08:03   #6
Marine Service Provider
 
peghall's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Feb 2011
Posts: 1,533
Re: Macerator or manual pump?

I second Seamonkey's and Scott's recommendation. An electric diaphragm pump can run dry for a LONG time (hour or more) without harm...so it combines the push-button convenience of a maccerator pump with the reliability of a manual diaphragm pump. They do cost a bit more than a macerator pump, but it only takes a few impeller replacements for a macerator to make up that difference. The SeaLand/Dometic T-Series pump by far the best. I had one on my own boat that was 11 years old when I sold the boat...still working fine. Don't know of many other things that I could say that about.
__________________
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 07-01-2012, 10:34   #7
Registered User
 
Blissopia's Avatar

Join Date: Jan 2012
Location: NJ
Boat: Pearson 422, 42ft
Posts: 31
These are awesome responses. Thanks for all your help.

Dylan
__________________
Blissopia is offline   Reply With Quote
Old 07-01-2012, 10:59   #8
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Re: Macerator or manual pump?

I would go with the macerator. Had a diaphragm pump once and the rubber would absorb/transfer the smell into the holding space.
__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 07-01-2012, 12:31   #9
Marine Service Provider
 
Scott Berg's Avatar

Join Date: Jul 2011
Location: Aboard
Boat: Seaton 60' Ketch
Posts: 959
Quick note: while there are indeed some diaphragm bilge pumps that aren't suited for solid waste the sealand pumps have a poly bellows and are odor free even after a decade. It's the same technology used in the excellent if expensive vacuflush heads with fewer duckbill valves

We've installed dozens with good results and I've been shipmates with mine for years and performance is great. They can also be fitted in series to make a lavac optionally electric


Scott
__________________
Scott Berg
WALSS
SV CHARDONNAY
Scott Berg is offline   Reply With Quote
Old 07-01-2012, 21:13   #10
Marine Service Provider
 
peghall's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Feb 2011
Posts: 1,533
Re: Macerator or manual pump?

Fwiw, the SeaLand T-pump is identical to the S-Pump (Vacuflush vacuum pump) with two exceptions:

1. It's half the price of the of S-pump

2. it only needs one duckbill at each end--and the valve nipples are reversed threaded to prevent owners from replacing S-pumps with T-pumps. However, it's actually very easy to replace an S-Pump with a T-Pump that does need 4 duckfills if you have only a little more mechanical ability than is needed to turn a doorknob.
__________________
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 07-01-2012, 21:34   #11
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Re: Macerator or manual pump?

Quote:
Originally Posted by peghall View Post
Fwiw, the SeaLand T-pump is identical to the S-Pump (Vacuflush vacuum pump) with two exceptions:

1. It's half the price of the of S-pump

2. it only needs one duckbill at each end--and the valve nipples are reversed threaded to prevent owners from replacing S-pumps with T-pumps. However, it's actually very easy to replace an S-Pump with a T-Pump that does need 4 duckfills if you have only a little more mechanical ability than is needed to turn a doorknob.

Quote:
Originally Posted by Scott Berg
Quick note: while there are indeed some diaphragm bilge pumps that aren't suited for solid waste the sealand pumps have a poly bellows and are odor free even after a decade. It's the same technology used in the excellent if expensive vacuflush heads with fewer duckbill valves

We've installed dozens with good results and I've been shipmates with mine for years and performance is great. They can also be fitted in series to make a lavac optionally electric
BTW these duck...whatever's are called a joker valve.
__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 07-01-2012, 22:45   #12
Marine Service Provider
 
peghall's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Feb 2011
Posts: 1,533
Re: Macerator or manual pump?

They're very similar to a joker valve and serve part of the function of a joker valve...however SeaLand calls 'em duckbill valves...so to avoid confusing folks who don't know that they're essentially the same thing as a joker valve, I call 'em duckbills too.
__________________
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 09-01-2012, 09:37   #13
Registered User
 
Watercolor's Avatar

Join Date: Sep 2009
Location: Montpelier, VT
Boat: On the hard for now - 2 dinghies
Posts: 198
Re: Macerator or manual pump?

We had a Shannon 28 set up exactly like your system. If you're off shore you can pump straight overboard, by passing the tank. If you're on shore and pump into the tank, I'm assuming you're close to a pumpout. if you need to pump-out of the tank off shore, I'd go with the diaphragm pump. The ideal would be an electric pump with a manual override.

A simple option that we used on the Shannon, although a little clunky, was a manual diaphragm pump an a board with two hoses. When I had to I'd simply haul out the pump and hoses on deck, screw in the hose to the deck fitting and the other overboard. Simply pump. Clean out the hoses and store. Never had a problem with it working or smells. Again, it's a simple option.
__________________
Watercolor is offline   Reply With Quote
Old 10-01-2012, 14:42   #14
Registered User
 
Blissopia's Avatar

Join Date: Jan 2012
Location: NJ
Boat: Pearson 422, 42ft
Posts: 31
I have considered and researched all of your suggestions have decided to go with the Sealand T Series pump.
Thanks again for all your help

Dylan
__________________

__________________
Blissopia 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
Airconditioning Raw Water Pump Relay Box Capt. Rich Plumbing Systems and Fixtures 3 06-01-2012 09:14
Alternative to Seawater Impeller Pump ? nitpik Engines and Propulsion Systems 4 22-11-2011 12:32
Three-Prong Oil Pressure Switch and Electric Fuel Pump - Is a Fuel Pump Relay Needed? sdowney717 Electrical: Batteries, Generators & Solar 4 29-09-2011 08:06
Yanmar Lift Pump Charlie Engines and Propulsion Systems 28 25-08-2011 21:08
DUD John Deere Injector Pump Stuck on Engine - Help! Dondon462 Engines and Propulsion Systems 12 16-08-2011 23:01



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 12:44.


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.