Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-28-2020, 02:19 PM   #1
Senior Member
 
City: Long Beach Ca
Vessel Name: Island Hopper also, Freebird
Vessel Model: 1966 Californian, also 1997 Mainship 350
Join Date: Jun 2010
Posts: 241
Plumbing

Good morning.
I am going to replace the sani hose that goes from the toilet to the holding tank in an effort to clear unwanted odors from the 1997 350 mainship I recently purchased.
It currently is one inch white sani hose that is quite old and I can smell an odor permeating thru it.
The run is approximately 10-12 feet with several 90 degree turns. I am thinking of using PVC except for a few feet at the toilet and at the holding tank for ease of connections.
What would be the best transition from hose to PVC?
PVC to hose barb connection looks the most solid however I am concerned at the loss of diameter at the hose barb.
A hose cuff would solve that issue however is this a good connection under pressure of the macerator pump at the toilet?

Thanks in advance
Jim
__________________
Advertisement

jclays is offline   Reply With Quote
Old 11-28-2020, 03:18 PM   #2
Guru
 
HopCar's Avatar
 
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 4,735
You’re overthinking it. There are two excellent sanitation hoses that last many years without permeating. Just use Trident 101 or 102 hose. For a more flexible hose use Raritan SaniFlex. Both have a ten year warranty.
__________________

__________________
Parks Masterson
HopCar is offline   Reply With Quote
Old 11-28-2020, 03:52 PM   #3
Guru
 
HeadMistress's Avatar


 
City: AR
Join Date: Jul 2009
Posts: 2,064
I hope you're planning to replace the tank discharge hose and tank vent line too as well as the toilet intake hose...'cuz the discharge hose and vent line have permeated too and the toilet intake line is almost certain to be at least partially blocked with sea water mineral buildup.

As Parks said, there are two hoses that have proven to be 100% odor permeation resistant--Trident 101/102 (identical except 101 is black, 102 has a white "skin" on it) Trident #101 Sanitation Hose Trident #10 2Sanitation Hose - and Raritan SaniFlex Raritan Saniflex Sanitation Hose

Trident 101/102 have only one drawback: they're as stiff as an ironing board...making them only suitable for long straight runs 'cuz it's necessary to insert inline radius fittings in any bends more than about 10 degrees...in which case you might as well go with hard PVC for half the price, but you'd still have all those unions necessary to "soft couple" the connections to the toilet, tank and pumpout fitting in addition to any inline fittings. Raritan SaniFlex is so flexible it can be bent almost as tight as a hairpin without kinking, which makes most jobs a LOT easier...making it the hose I recommend. Defender has the best price for it Raritan Sani / Flex Sanitation Hose at Defender

You can use Shields or Trident flex pvc #148(the cheap stuff) for the vent line and toilet intake line.

However, there's a bit more to this job than just replacing hoses if you want to eliminate the odor, 'cuz the permeated hoses have left residual odor in the areas through which they've passed. Getting rid of that will require a thorough cleaning with detergent and water followed by treating with an odor eliminating product...I recommend PureAyre PureAyre.

--Peggie
__________________
© 2020 Peggie Hall
Specializing in marine sanitation since '87.
Author "The NEW Get Rid of Boat Odors"
HeadMistress is offline   Reply With Quote
Old 11-28-2020, 04:11 PM   #4
Guru
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Never Say Never
Vessel Model: President 41 DC
Join Date: Jul 2015
Posts: 10,558
Go with the Raritan Sani Flex. It is very easy to use and like Peggie says it doesn’t permeate. And Defender does have the best price that I have found. If you are going to but much stuff over the next year, you might want to join Defender 1st. It costs $50 for a year and you get better prices. I saved about $80 on an alternator so it was a great deal for me as the alternator paid for more than the year membership.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you aren’t one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 11-28-2020, 04:33 PM   #5
Guru
 
HopCar's Avatar
 
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 4,735
The first step is to buy Peggie’s book.
https://www.amazon.com/New-Get-Rid-B...s%2C232&sr=8-3
__________________
Parks Masterson
HopCar is offline   Reply With Quote
Old 11-28-2020, 06:12 PM   #6
Senior Member
 
Duvie's Avatar
 
Join Date: Nov 2011
Posts: 315
Concerning the transition from PVC to hose. Seacoast services has what you want. https://seacoastservices.com/pvc-fittings/
Duvie is offline   Reply With Quote
Old 11-28-2020, 06:38 PM   #7
Guru
 
C lectric's Avatar
 
City: Gibsons, B.C.
Vessel Name: Island Pride
Vessel Model: xxxx
Join Date: Oct 2007
Posts: 3,210
If you go PVC then use PVC schedule 40, not the lightweight stuff meant for vacuum lines or gutter drains.
Use the sweeps such as shown in the seacoastservices reference by Duvie. Standard 90o are quite tight and more prone to a clog.
These guys I see also offer smooth hose to pipe adapters which I have used in my system. Lots of room for two clamps. Minimal reduction in diam. which in reality I don't think you really need worry about.

Or better use the Raritan hose.

Just be carefull no matter which you use to avoid dips which will hold material.

I will second Peggies book. Many good tips in there especially if you are going to redo the system. NO point in learning it all the hard way.
C lectric is offline   Reply With Quote
Old 11-28-2020, 08:36 PM   #8
Senior Member
 
City: Long Beach Ca
Vessel Name: Island Hopper also, Freebird
Vessel Model: 1966 Californian, also 1997 Mainship 350
Join Date: Jun 2010
Posts: 241
Quote:
Originally Posted by HeadMistress View Post
I hope you're planning to replace the tank discharge hose and tank vent line too as well as the toilet intake hose...'cuz the discharge hose and vent line have permeated too and the toilet intake line is almost certain to be at least partially blocked with sea water mineral buildup.

As Parks said, there are two hoses that have proven to be 100% odor permeation resistant--Trident 101/102 (identical except 101 is black, 102 has a white "skin" on it) Trident #101 Sanitation Hose Trident #10 2Sanitation Hose - and Raritan SaniFlex Raritan Saniflex Sanitation Hose

Trident 101/102 have only one drawback: they're as stiff as an ironing board...making them only suitable for long straight runs 'cuz it's necessary to insert inline radius fittings in any bends more than about 10 degrees...in which case you might as well go with hard PVC for half the price, but you'd still have all those unions necessary to "soft couple" the connections to the toilet, tank and pumpout fitting in addition to any inline fittings. Raritan SaniFlex is so flexible it can be bent almost as tight as a hairpin without kinking, which makes most jobs a LOT easier...making it the hose I recommend. Defender has the best price for it Raritan Sani / Flex Sanitation Hose at Defender

You can use Shields or Trident flex pvc #148(the cheap stuff) for the vent line and toilet intake line.

However, there's a bit more to this job than just replacing hoses if you want to eliminate the odor, 'cuz the permeated hoses have left residual odor in the areas through which they've passed. Getting rid of that will require a thorough cleaning with detergent and water followed by treating with an odor eliminating product...I recommend PureAyre PureAyre.

--Peggie
toilet intake is fresh water. Holding tank to pump out macerator replaced. Macerator to seacock replaced. Just need to replace vent and toilet to holding tank hose.
jclays is offline   Reply With Quote
Old 11-28-2020, 08:45 PM   #9
Guru
 
Ken E.'s Avatar
 
City: Bellingham WA
Vessel Name: Hatt Trick
Vessel Model: 45' Hatteras Convertible
Join Date: Nov 2016
Posts: 1,455
Ditto the comments for Raritan Saniflex hose and buying it from Defender. Did this last winter and got a good result.
__________________
Ken on Hatt Trick
Ken E. is offline   Reply With Quote
Old 11-28-2020, 09:05 PM   #10
Senior Member
 
City: Long Beach Ca
Vessel Name: Island Hopper also, Freebird
Vessel Model: 1966 Californian, also 1997 Mainship 350
Join Date: Jun 2010
Posts: 241
Quote:
Originally Posted by HeadMistress View Post
I hope you're planning to replace the tank discharge hose and tank vent line too as well as the toilet intake hose...'cuz the discharge hose and vent line have permeated too and the toilet intake line is almost certain to be at least partially blocked with sea water mineral buildup.

As Parks said, there are two hoses that have proven to be 100% odor permeation resistant--Trident 101/102 (identical except 101 is black, 102 has a white "skin" on it) Trident #101 Sanitation Hose Trident #10 2Sanitation Hose - and Raritan SaniFlex Raritan Saniflex Sanitation Hose

Trident 101/102 have only one drawback: they're as stiff as an ironing board...making them only suitable for long straight runs 'cuz it's necessary to insert inline radius fittings in any bends more than about 10 degrees...in which case you might as well go with hard PVC for half the price, but you'd still have all those unions necessary to "soft couple" the connections to the toilet, tank and pumpout fitting in addition to any inline fittings. Raritan SaniFlex is so flexible it can be bent almost as tight as a hairpin without kinking, which makes most jobs a LOT easier...making it the hose I recommend. Defender has the best price for it Raritan Sani / Flex Sanitation Hose at Defender

You can use Shields or Trident flex pvc #148(the cheap stuff) for the vent line and toilet intake line.

However, there's a bit more to this job than just replacing hoses if you want to eliminate the odor, 'cuz the permeated hoses have left residual odor in the areas through which they've passed. Getting rid of that will require a thorough cleaning with detergent and water followed by treating with an odor eliminating product...I recommend PureAyre PureAyre.

--Peggie
toilet intake is fresh water. Holding tank to pump out macerator replaced. Macerator to seacock replaced. Just need to replace vent and toilet to holding tank hose.
jclays is offline   Reply With Quote
Old 11-28-2020, 09:48 PM   #11
Guru
 
City: Here
Join Date: Sep 2012
Posts: 2,946
Quote:
Originally Posted by jclays View Post
Good morning.
I am going to replace the sani hose that goes from the toilet to the holding tank in an effort to clear unwanted odors from the 1997 350 mainship I recently purchased.
It currently is one inch white sani hose that is quite old and I can smell an odor permeating thru it.
The run is approximately 10-12 feet with several 90 degree turns. I am thinking of using PVC except for a few feet at the toilet and at the holding tank for ease of connections.
What would be the best transition from hose to PVC?
PVC to hose barb connection looks the most solid however I am concerned at the loss of diameter at the hose barb.
A hose cuff would solve that issue however is this a good connection under pressure of the macerator pump at the toilet?

Thanks in advance
Jim
I have 5" of hose at the toilet and 5" of hose at the tank. The rest of it is ABS residental plumbing. Faster, cheaper, easier than hose plus 90 or 45 degree corners and ability to easily control the rate of fall ... and bonus ... a clean out trap ! 30yrs. on three boats without any smell whatsoever. Do it once.
boatpoker is offline   Reply With Quote
Old 11-28-2020, 10:33 PM   #12
Guru
 
HeadMistress's Avatar


 
City: AR
Join Date: Jul 2009
Posts: 2,064
toilet intake is fresh water. Holding tank to pump out macerator replaced. Macerator to seacock replaced. Just need to replace vent and toilet to holding tank hose.


Fresh water isn't immune to mineral buildup. There's no tank-to-deck pumpout line??
And...if the hoses in your system are even half as old as the boat, there's good reason to replace all of 'em: The average working life of any hose is about 10 years because rubber and plastics dry out over time, becoming hard, brittle and prone to splitting and cracking. So although it may be more work than you want to do now, far better to do the entire job now and get it over with than have to it all some at a time later.


--Peggie



--Peggie
__________________
© 2020 Peggie Hall
Specializing in marine sanitation since '87.
Author "The NEW Get Rid of Boat Odors"
HeadMistress is offline   Reply With Quote
Old 11-29-2020, 11:55 AM   #13
Senior Member
 
City: Long Beach Ca
Vessel Name: Island Hopper also, Freebird
Vessel Model: 1966 Californian, also 1997 Mainship 350
Join Date: Jun 2010
Posts: 241
What did you use to make the hose to ABS connection?
jclays is offline   Reply With Quote
Old 11-29-2020, 01:25 PM   #14
Guru
 
Cigatoo's Avatar
 
City: Narragansett Bay
Vessel Model: Grand Banks 36
Join Date: Sep 2016
Posts: 1,122
Quote:
Originally Posted by jclays View Post
What did you use to make the hose to ABS connection?
I think this is what you are looking for.

https://seacoastservices.com/hose-adapter-kit/
__________________
Charlie0
Cigatoo is offline   Reply With Quote
Old 11-29-2020, 02:14 PM   #15
Guru
 
HopCar's Avatar
 
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 4,735
Quote:
Originally Posted by Cigatoo View Post
I think this is what you are looking for.

https://seacoastservices.com/hose-adapter-kit/
Unfortunately I don’t think they make those for use with 1 inch hose. They work great for 1-1/2” hose to pipe.

He could slip the 1” hose over 3/4” pvc but that would reduce the ID a lot.

I think he’s better off just running high quality hose the whole way.
__________________
Parks Masterson
HopCar is offline   Reply With Quote
Old 11-29-2020, 09:58 PM   #16
Guru
 
bligh's Avatar
 
City: Santa Cruz, CA
Vessel Name: Concerto
Vessel Model: 1980 Cheoy Lee
Join Date: May 2013
Posts: 1,479
I can't recall ever seeing 1 inch ABS pipe or fittings.
bligh is offline   Reply With Quote
Old 11-29-2020, 10:01 PM   #17
Guru
 
City: Here
Join Date: Sep 2012
Posts: 2,946
Quote:
Originally Posted by bligh View Post
I can't recall ever seeing 1 inch ABS pipe or fittings.
I use 1.5" ABS for all holdig tank purposes including vents.
Various residential ABS sink fittings fit quite nicely in the 1.5" (5" long) sections of sanitary hose that I use to connect things together
boatpoker is offline   Reply With Quote
Old 11-29-2020, 11:30 PM   #18
Senior Member
 
City: Long Beach Ca
Vessel Name: Island Hopper also, Freebird
Vessel Model: 1966 Californian, also 1997 Mainship 350
Join Date: Jun 2010
Posts: 241
Thanks all. I’ll just go new 1” hose. Less hassle.
jclays is offline   Reply With Quote
Old 11-29-2020, 11:35 PM   #19
Senior Member
 
City: Long Beach Ca
Vessel Name: Island Hopper also, Freebird
Vessel Model: 1966 Californian, also 1997 Mainship 350
Join Date: Jun 2010
Posts: 241
Have another one for you all. Cleaning up the boat today. Flushed the toilet a few times to run water thru the system. When I walked outside passing the vent shortly after flushing just water there was a really bad sewage odor coming out the vent. Is this due to the vent hose or is it the water entering the holding tank displacing nasty air in the tank.
jclays is offline   Reply With Quote
Old 11-30-2020, 09:27 AM   #20
Guru
 
HeadMistress's Avatar


 
City: AR
Join Date: Jul 2009
Posts: 2,064
Quote:
Originally Posted by jclays View Post
Thanks all. I’ll just go new 1” hose. Less hassle.




If this is your first time replacing hoses, a couple of tips that may make the job easier:

Flush a LOT of water through the system before you begin.
Warming the old hoses a bit (I always used a blow dryer) will make them easier to get off the fittings.
Put a plastic waste basket liner under each connection to catch any spills.
Warming the hose also makes it easier to get the new hose onto the fittings. Lubricate the inside of the hose and the outside of the fitting with a little K-Y...it's a water soluble surgical jelly that dries out and is also much slipperier than dishwashing liquid.
And I'm sure you already know that all hose connections should be double clamped, with screws 180 degrees apart...or at least 90 degrees if access makes 180 impossible.

The odor out the vent when you flushed the toilet was nasty (anaerobic) gasses forced out the vent by the incoming water. Thoroughly flushing out the tank as another step in preparing to replace your hoses is the first step in curing it.

--Peggie
__________________

__________________
© 2020 Peggie Hall
Specializing in marine sanitation since '87.
Author "The NEW Get Rid of Boat Odors"
HeadMistress is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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



» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 02:09 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012
×