[C320-list] hose barbs

[Fred LEcuyer]

I've used a heat gun to make connections on various hoses and fittings. Works fine.... just don't overdo it on the white hose. 

Fred
First Light
Hull # 926


> Date: Fri, 21 Oct 2011 08:40:58 -0700
> From: cherie320 at gmail.com
> To: C320-List at catalina320.com
> Subject: Re: [C320-list] hose barbs
> 
> Bill
> 
> If the hose and barbs are the same size - 3/4 inch, the tapered end of the
> barb should fit inside the end of the tube.  Heating should soften the tube
> so it will expand over the larger diameter of the barbs.  Quality hose will
> be stiffer and require more force to engage the barbed fitting, but it
> should be possible to assemble.
> 
> Suggestion 1 - test assemble or pre-assemble to verify fit.  Sometimes a
> tight space does not allow sufficient leverage to allow high force
> assembly.
> Suggestion 2 - threaded fittings are easier to assemble in tight spaces if
> twisting force is possibloe and linear force application is limited.  You
> may need to assemble the barbed fitting to the hose, unscrew the threaded
> fitting and install by threading the fitting back on the component with the
> hose in place on the fitting.  Not all applications allow this approach, but
> it can be an alternate solution.  Caution.  I used this approach on a toilet
> install where the fitting was a flange mount.  A bolt can place significant
> load on a flange.  If the flange is plastic it may break if care is not
> exercised in the act of tightening the bolts.
> 
> Suggestion 3 - Keep on trying.  Sometimes we just give up too soon.  Caution
> - don't slip and cut yourself on any sharp edges.
> 
> Suggestion 4 - search the forum - I thought someone used a heat gun to
> soften the white hose.  They said you had to be careful not to damage other
> parts, but were able to make the connection.  I thought it was the install
> of the 1-1/2 waste hose, but really don't remember, so the disclaimer is
> appropriate - YMMV.
> 
> Good luck - Pat, 801
> On Fri, Oct 21, 2011 at 7:58 AM, <wflowe3 at aim.com> wrote:
> 
> > I have a dedicated water tank plumbed to the head.  It uses white 3/4"
> > vinyl tubing to make the run from tank to head. I want to plumb in a shutoff
> > valve so that I don't have to drain the tank if I want to work on the toilet
> > pump assembly.  I've cut the hose, purchased the valve with 3/4" plastic
> > hose barbs and I cannot get the barbs to fit into the cut hose.  I've tried
> > lubricating them with liquid dish soap-no luck.  Tried heating the hose with
> > hot water--no luck.  Any suggestions?
> >
> >  Bill
> > #1146
> >