SailNet Community - Reply to Topic

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > new trick for removing head hoses!
 Not a Member? 


Thread: new trick for removing head hoses! Reply to Thread
Title:
  

By choosing to post the reply below you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
12-05-2012 06:08 PM
ggray
Re: new trick for removing head hoses!

Quote:
Originally Posted by Minnewaska View Post
I don't believe the space between the bottom of the bowl and the pump, which in our case is a macerator, is ever fully empty. A dip in the line is going to permeate eventually. l would rather leave an inch of clean water in the bowl if this was an issue.

That space below the bowl is the easiest to insure has clean water in it, especially when away for a few days and we flush a couple of bowls of fresh water from the sink, instead of sea water.
Well, a pool of fresh (or sea water) filling the hose would block the holding tank gas without the permeation issue. So a long flush would be best. But if there is no dip, in other words, the hose slopes downward all the way to the holding tank, my experience is you can't keep an inch of clean water in the bowl. It all drains down to the tank. At least it did with our old Jabsco head, and I believe it does with the Raritan PHII I just installed. I have no dip, so the bowl drains.

I'm just suggesting to be prepared for this. I have no macerator, so not sure of its impact on this.
12-05-2012 05:36 PM
dinosdad
Re: new trick for removing head hoses!

Quote:
Originally Posted by Ritchard View Post
To the original post, the easiest way to cut white flexi pipe is a hacksaw, not a sawzall. Also the crescent "soft metal" cutter head on your multicrafter tool works pretty well, but the hacksaw remains easier, and possibly quicker. I can't speak to more rubbery hose.

For catching goo, I live in Canada, and the "wait for the freeze" is a great strategy. I removed my holding tank last winter that way, having to tilt and twist the tank out of place with the pipes taken off. Worked a treat with the the contents frozen into a poopsicle such that there was so much as a drop lost. That having been said, at -20C it takes a while to soften the flexi pipes with a heat gun for removal from the barbed fittings. When I've removed a section of pipe in more moderate seasons, instead of spray foam I have stuffed the ends of the pipe with paper towel - hard. That works for the upper end, but if you have to take the end off the toilet, you're pooched.

Late this past season I removed quite a bit of the longish snake of white flexi pipe from inside and under cabinets and such, and replaced it with PVC. It's a much shorter direct run on the toilet to tank intake now. My thinking was twofold, the PVC is much less permeable, and the short run (maybe 18" vs 5 feet) allows me to use much less water when flushing to clear the pipes well. With only a 15 gal holding tank, this is advantageous to me. On the pumpout side, there is now no low point of flexi pipe to accumulate sewage. I hope/trust that the PVC will remain non-stinky at that low point for years to come.
not when you cant get a hacksaw in the cabinet where the hoses are, and if you use a fine tooth blade it slices nice and clean , and a quality sawzall makes a difference. {but i like the idea of sailing to venezuela and having them do it for less than the cost of a good cordless sawzall the best!}
12-05-2012 05:18 PM
Ritchard
Re: new trick for removing head hoses!

There is a hard connection from tank to PVC, both inflow and outflow. There is a short bit of flexi pipe joining the toilet to the PVC. This is a low point, and may become permeated. But it is only a handful of inches, and perhaps I'd change it each winter. With the rubber cuff on the end of the flexi pipe, and short length of flexi pipe itself, I hope this gives enough movement. At the pumpout side, there is a longer section of flexi pipe, but it is uphill just below deck level, where sewage will never be collecting. It will take years for that piece to permeate. The PVC pipe does not touch any part of the boat anywhere but the hard connection at the tank, and the flexi pipe at the other end. Anywhere it passes thought a bulkhead or anything, there is a large enough cutout to allow for a bit of movement.

I think I'm okay mechanically.

Oh by the way, I am pretty sure the piping I replaced last winter (before re-replacing and shortening runs with PVC) was original to the 1979 boat. Ewww.
12-05-2012 03:57 PM
Barquito
Re: new trick for removing head hoses!

Quote:
Late this past season I removed quite a bit of the longish snake of white flexi pipe from inside and under cabinets and such, and replaced it with PVC. It's a much shorter direct run on the toilet to tank intake now. My thinking was twofold, the PVC is much less permeable, and the short run (maybe 18" vs 5 feet) allows me to use much less water when flushing to clear the pipes well. With only a 15 gal holding tank, this is advantageous to me. On the pumpout side, there is now no low point of flexi pipe to accumulate sewage. I hope/trust that the PVC will remain non-stinky at that low point for years to come.
Did you put sections of hose on each end to allow for flexing?
12-05-2012 03:07 PM
Ritchard
Re: new trick for removing head hoses!

To the original post, the easiest way to cut white flexi pipe is a hacksaw, not a sawzall. Also the crescent "soft metal" cutter head on your multicrafter tool works pretty well, but the hacksaw remains easier, and possibly quicker. I can't speak to more rubbery hose.

For catching goo, I live in Canada, and the "wait for the freeze" is a great strategy. I removed my holding tank last winter that way, having to tilt and twist the tank out of place with the pipes taken off. Worked a treat with the the contents frozen into a poopsicle such that there was so much as a drop lost. That having been said, at -20C it takes a while to soften the flexi pipes with a heat gun for removal from the barbed fittings. When I've removed a section of pipe in more moderate seasons, instead of spray foam I have stuffed the ends of the pipe with paper towel - hard. That works for the upper end, but if you have to take the end off the toilet, you're pooched.

Late this past season I removed quite a bit of the longish snake of white flexi pipe from inside and under cabinets and such, and replaced it with PVC. It's a much shorter direct run on the toilet to tank intake now. My thinking was twofold, the PVC is much less permeable, and the short run (maybe 18" vs 5 feet) allows me to use much less water when flushing to clear the pipes well. With only a 15 gal holding tank, this is advantageous to me. On the pumpout side, there is now no low point of flexi pipe to accumulate sewage. I hope/trust that the PVC will remain non-stinky at that low point for years to come.
12-05-2012 02:10 PM
Minnewaska
Re: new trick for removing head hoses!

Quote:
Originally Posted by ggray View Post
....Is it always best to ensure there is no dip?

I understand the matter of hose permeation, but the dip, if deep enough to completely fill the hose, will function like a sink trap to block sewer gases.....
I don't believe the space between the bottom of the bowl and the pump, which in our case is a macerator, is ever fully empty. A dip in the line is going to permeate eventually. l would rather leave an inch of clean water in the bowl if this was an issue.

That space below the bowl is the easiest to insure has clean water in it, especially when away for a few days and we flush a couple of bowls of fresh water from the sink, instead of sea water.
12-05-2012 02:06 PM
Minnewaska
Re: new trick for removing head hoses!

Quote:
Originally Posted by chef2sail View Post
Hey if its too difficult to disconnect them, use the hacksaw/ dremel method and cut them ( put the baggies with rubber bands on the ends I mentioned before ) and the just place these smooth PVC valve connectors or find smooth pvc between the hoses to rejoin them. It may be easier and less messy to do it this way oin the long run.

Sch 80 Couplings, Buy Coupling Slip X Slip Pvc Fitting Schedule 80 Online

Ball Valves Slip x Slip, White - PVC Fittings Direct

Personally if I were replacing my holding tank I would have a new tank and replace the sanitary hoses...all of them with Trident 101. That way the hwole system is new and you can forget it for 8 years or so.

Dave

Dave
I know you are right about doing the hoses, but its killing me that I would not be replacing anything right now, if not for this lousy OEM ss tank.

On the other hand, beyond the expense, what I would need to dismantle to replace everything would be monumental.

Thanks for the parts suggestions.
12-05-2012 02:04 PM
Minnewaska
Re: new trick for removing head hoses!

Quote:
Originally Posted by Brewgyver View Post
Minnie, coupling it in may leave a narrowing (barb fitting) that again results in waste sitting there. Instead, check the OD of your existing line, and then check the ID of the next larger ABS pipe (probably 2" ??). I think it's big enough to use as an external support. Rip the length of pipe - a band saw would be best, but a table saw would do almost as well. Clamshell the ripped halves over the sagging length of hose with a couple or three clamps.
Another cool idea. Thanks.
12-05-2012 01:26 PM
ggray
Re: new trick for removing head hoses!

Quote:
Originally Posted by Minnewaska View Post

a dip in the line is always going to have fluid sitting there partially contaminated.

The weight of the fluid must cause it to dip and over 8 years, its stays that way. I may consider coupling in an ABS pipe for just this part of the run, or come up with a bracket of some kind.
It may be a good time to ask the question, while we are thinking about this issue.

Is it always best to ensure there is no dip?

I understand the matter of hose permeation, but the dip, if deep enough to completely fill the hose, will function like a sink trap to block sewer gases. This can be needed more on a boat than in a house because the vent on a boat is at times aimed right into the wind, and the resulting pressure can force gases out the head.

One winter, I diligently shortened and straightened the head hoses so there would be no dip at all. Next season, on occasion my wife would comment on the head smelling worse than usual. I soon figured it out from the wind direction, but was reluctant to admit to creating the problem, and also wanted to remain "dip-free". Next haulout though, I installed a second vent on the opposite side of the hull, so I no longer have the problem, even with no dips. Plus, the tank gets a good flow of air.

So beware if you try to remove the dip!
12-05-2012 01:06 PM
chef2sail
Re: new trick for removing head hoses!

Coupling with smooth PVC will not affect it and cause blockage as the items I sent Minnie were not barbed fittings. They are essentially the same diameter as the hose all the way through.

dave
This thread has more than 10 replies. Click here to review the whole thread.

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


All times are GMT -4. The time now is 05:25 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.