1987 31-2 water supply line to head faucet

[Mike Butler]

Hello,

The supply line to the head faucet on my 1987 31-2 is leaking. I have a attached a picture of the connector which I believe is damaged and the source of the leak. Does anyone know what the connector is called or where I can buy a new one?

Thank you.

Mike

"Vela" 

Weymouth MA

[Alptraveler]

Looks like a regular household faucet supply. You might be able to just replace the compress seal, it just slides on and when you screw on the fitting it beds itself to seal it. I have these fittings in my basement bathroom sink.

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[Jeff Deuel]

That looks like a Flair-It fitting, also sold on Amazon as RecPro RV plumbing. 

- Jeff

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[mark mills]

That's the same as on our camper.

   I just replaced some plumbing on the camper.  You can get it at any RV or camper sales department.

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[Jeffrey D]

…and from experience, there’s really *nothing* at Home Depot or Lowe’s that is compatible with that stuff. 

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[Guy Johnson]

Would a flexible stainless braid covered sink connection hose work? Looks like the same style. 

Guy

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To: pearso...@googlegroups.com <pearso...@googlegroups.com>
Subject: Re: [pearson ] 1987 31-2 water supply line to head faucet

 

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[Dave Cole]

I think thats polybutylene tubing. 

Measure the od of the tube.  I think Menards may have push to connect fittings that work.   They did at one time.   That tubing system had a lot of issues.

If not there is Amazon. 

SharkBite Transition Coupling https://a.co/d/fLcYaj4

Dave

10M #26

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[Andrew Milkovits]

Yes Dave is correct - that is polybutylene. Look for the brand name “Qest” if you need fittings. Very available for online ordering, but will be harder to find locally.    Like was mentioned, RV supply shops can be a good bet if you have one nearby.  

Andrew

On Oct 2, 2025, at 11:32 AM, Dave Cole <dave...@gmail.com> wrote:



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[Mike Butler]

I appreciate everyone’s quick and helpful responses.

Mike

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On Oct 2, 2025, at 11:54 AM, Andrew Milkovits <amilk...@gmail.com> wrote:

Yes Dave is correct - that is polybutylene. Look for the brand name “Qest” if you need fittings. Very available for online ordering, but will be harder to find locally.    Like was mentioned, RV supply shops can be a good bet if you have one nearby.  

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[Ed Criscuolo]

I found these in a small hardware store, and they worked great on my P323

@(^.^)@ Ed

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On Oct 2, 2025, at 12:11 PM, Mike Butler <mikebut...@gmail.com> wrote:

I appreciate everyone’s quick and helpful responses.

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[John Getz]

Also Parker compression fittings from Grainger. 

I did find some of these at a Worst Marine here in California. 

John G

https://www.grainger.com/product/PARKER-Compression-Fitting-Adapter-2ZTG4?opr=PLADS&analytics=FM%3APLA&a2c_sku_original=2ZTG5&position=1

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On Oct 2, 2025, at 9:19 AM, Ed Criscuolo <e...@chessie.com> wrote:

I found these in a small hardware store, and they worked great on my P323

<image.jpg>

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[Dave Cole]

If the OD of the tube is 0.50 inches, you can just use a brass compression fitting with a brass or plastic ferrule.

I did a search and polybutylene tubing is supposed to be CTS, which stands for Copper Tube Size.  

A 3/8" CTS tube has a 1/2" OD.  A 1/2" CTS tube has a 5/8" OD.  

So brass compression fittings "should" work.  That said there were issues with Polybutylene tubing.  And that's why its obsolete.    

See the attached screen shots

Dave 

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[Dave Cole]

Found these at Menards last night.

These allow polybutylene tubing to be used with Watts push to connect fittings.

Dave

10M #26

---------- Forwarded message ---------
From: Dave Cole <dave...@gmail.com>
Date: Thu, Oct 2, 2025, 10:00 PM
Subject: Re: [pearson ] 1987 31-2 water supply line to head faucet

To: <pearso...@googlegroups.com>

I had to go to Menards tonight to buy materials for a house project.  Went into the plumbing section and found these.  These are made by Watts so you can use their plastic push to connect fittings with Polybutylene tubing.  Polybutylene tubing had all kinds of issues and I think one issue was that it would creep or gradually deform and leak.  Hence the reinforcement.

Dave

10M #26

[Peter McGowan]

Hi Mike,

That looks quite similar to what the connection looked like on my head faucet but it’s been a couple of years.  If I recall the faucet side of things was two chromed copper tubes with male threaded ports soldered/welded (whatever the word).  The chromed tubing had become corroded/oxidized/mottled over the years like any old faucet.  I measured the OD on those metal tubes and was delighted to find it matched a standard push to connect fitting size (I don’t recall the diameter at this point, or whether it was imperial or metric) but for sure a push to connect fitting existed.  So I decided to cut the male threaded connectors off with one of those micro pipe cutters you rotate around a pipe with your fingers adjusting the pressure of the cutting wheel as you go, sanded them because the tubing was old oxidized green, and ordered a couple of push to connect fitting online (if memory serves me it was an irrigation supply house).  I’m not at the boat, but I’m pretty sure the couplers were push to fit on one side (for the faucet) and threaded the other side (to fit those flexible braided

stainless steel hoses you use with faucets these days).  Sometime I’ll order a less ratty faucet it’ll likely have those style hoses. 

Hope this helps,  

Peter

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[Mike Butler]

Pete and Dave

Super helpful tips and photos. I am plumbing-challenged.

Thank you.

Mike 

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On Oct 3, 2025, at 9:35 AM, Peter McGowan <mcgowa...@gmail.com> wrote:



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[Dave Cole]

Good luck!  There is a lot to learn when it comes to plumbing.   Its all become a lot more complex over the years. Having it on a sailboat just makes it even more complex.

I worked in a hardware store in the early 70s.  We had copper tubing, copper pipe, and black and galvanized steel pipe.  We cut and threaded pipe up to 2 inches. 

Back then people were still repairing existing steel house plumbing. 

Soldered copper pipe was state of the art. The solder was leaded.   We also sold leaded paint.   

But we never sold plastic pipe or tubing. 

Dave

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