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post #1 of 28 Old 11-13-2013 Thread Starter
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Replacing Head Plumbing

I have a 12 year old Bene 331 and I'm looking to replace all the head hoses over the winter. Wondering who has had experience with this and more specifically:
- Has anyone done a system with rigid PVC/ABS and flexible couplers?
- Is there any downside to completely removing the Y-valve for overboard direct discharge (I'm on the great lakes so will never use this option).

thanks,
David
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post #2 of 28 Old 11-13-2013
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Re: Replacing Head Plumbing

Getting rid of the Y valve makes sense in your case, simplifies things.

I know SNer 'erps' has much of his head plumbing in hard plastic pipe.. it put a total end to any odor permutation, maybe he'll chime in, or you can send him a PM once you get up to 10 posts (you've been here 3 1/2 years... what's keeping you? )

It's always interesting running 'all new' plumbing in a liner-heavy interior..

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Re: Replacing Head Plumbing

Thanks for the quick reply- I'm sure this project will elicit much swearing and frustration before its done, but I'm hoping to simplify things as much as I can. I'm sure once I pull the holding tank out the limitations and possibilities will become more apparent.
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post #4 of 28 Old 11-13-2013
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Re: Replacing Head Plumbing

I asked a similar question a few months ago. I wound up buying the conventional wisdom and using the black Triton "green stripe" hose. I haven't actually done the work, though. Rebuilding the head had me deciding to wait until cooler/cold weather to do the work. I'll see if I can find the thread, because there were positive and negative comments about PVC.

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post #5 of 28 Old 11-13-2013
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Re: Replacing Head Plumbing

Aha! Found the thread:
https://www.sailnet.com/forums/allman...ead-hoses.html

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post #6 of 28 Old 11-13-2013
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Re: Replacing Head Plumbing

Quote:
Originally Posted by jimgo View Post
... deciding to wait until cooler/cold weather to do the work. I'll see if I can find the thread, because there were positive and negative comments about PVC.
Warm the inside of the boat! Working with sanitation hose (even the rubber ones) in the cold is a drag. Perhaps you will wish it had been a summer project!

And perhaps there are some tips here that will help:
Sail Delmarva: The Easy Button
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post #7 of 28 Old 11-13-2013
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Re: Replacing Head Plumbing

I sailed on a friend's Bene 311 this past summer. I don't remember much about the head, except that it was at the base of the companionway steps.

I replaced most of the black water hoses in my O'day 35 last spring. I suggest that this IS a project for cooler temps, as it keeps the "bouquet" to a minimum...

My boat was equipped with a VacuFlush head, which I have grown to love. It was plumbed with Dometic's flexible hose, which was not that great, nor was it worth what the P.O. paid.

I used 1 schedule 80 (S80) PVC for any straight runs, and used Trident 102 (white) for anywhere that the hose needed to go through a bulkhead. To connect the S80 to the T102, I used off the shelf 1 PVC connectors, PVC Primer, and PVC Cement from the local big box store.

The trick when connecting PVC pipe to flexible hose is to use off the shelf PVC fittings WITH (and this tid-bit is worth $$$) the Sealand 307341513 Custom Hose Adapter and double hose clamps.

This is a non-ribbed barb adapter which allows for 1 PVC fittings to be used with 1 flexible hose. These sell for about $3.50 each, and they are worth every cent.


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Last edited by eherlihy; 11-13-2013 at 08:15 PM.
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post #8 of 28 Old 11-13-2013
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Re: Replacing Head Plumbing

Replaced all my waste hoses with ABS pipe with only a few inches of hose to make connections at valves, heads and tank. Almost 20 years now and never a leak or an odor.

The hysterical laughter you hear as you drive a way in your"new" boat ..... is the seller.
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post #9 of 28 Old 11-13-2013
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Re: Replacing Head Plumbing

If you use PVC, terminate each end with a section of hose. I think this will help keep any flexing from breaking the PVC.

Valiant 32
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post #10 of 28 Old 11-13-2013
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Re: Replacing Head Plumbing

Found some blog posts that might be helpful too;

SailSense - Plumbing
Attainable Adventure Cruising - PVC Pipe

Good Luck..
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beneteau 331 , head , hoses , plumbing , sanitary

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