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| Re: [GMCnet] Air Hose for a Water Line [message #161868 is a reply to message #161857] |
Wed, 29 February 2012 11:15   |
captjack
Messages: 271
Registered: February 2010
Location: Sebastopol, California
Karma: 1
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I've got it for my water line along mounted on a retractable reel which makes it easy to deply. What I notice is that with a 45 psi pressure reducer where it attaches to the hosebib in the RV park, the pressure at any reasonable flow in the RV is not satisfactory. There may be another cause that I've not yet identified.
Jack Christensen - K6ROW,
'76 Glenbrook/Clasco - "The Silver Bullet",
Sebastopol, CA
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| Re: [GMCnet] Air Hose for a Water Line [message #161875 is a reply to message #161857] |
Wed, 29 February 2012 11:55 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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I used PEX. If you ever need to repair on the road, you can usually find PEX at HD or Lowes now. It is also made for this.
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] Air Hose for a Water Line [message #161894 is a reply to message #161857] |
Wed, 29 February 2012 17:48 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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You need to use a hose that is rated for water service. Any rubber base hose will deteriorate over time and you will be replacing it on a regular basis and possibly ant an inopportune time. Use a proven water hose such as PEX. You will put it in one time and it will survive cold and freezing too! Our 30' stretch has PEX thru out and it is easy to install.
Regards,
J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan
On the road in Tucson
On Feb 29, 2012, at 8:11 AM, Peter Garry wrote:
> Has anybody used a 3/8" air hose line as a potable water line? Very flexible and readily available. Divers use it for breathing, how about water? Considering using it as I re-plumb the coach.
>
> PeterG
> Calgary
> 1973 23' once a "Painted Desert"
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Air Hose for a Water Line [message #161934 is a reply to message #161857] |
Thu, 01 March 2012 07:01 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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| Peter Garry wrote on Wed, 29 February 2012 10:11 |
Has anybody used a 3/8" air hose line as a potable water line? Very flexible and readily available. Divers use it for breathing, how about water? Considering using it as I re-plumb the coach.
PeterG
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Peter,
I understand what you are trying to do, but there are some points that have been missed.
The hose used for a diver's air supply is not "garage duty" air hose. It is different as it is compounded without any toxic materials. This is also what makes "drinking water service" hose stock different than others.
Another problem is that all elastomers have some water absorption. This is why you will see some hoses swell and soften when used with unintended fluids.
Lastly, is the problem that all elastomers creep (change shape with load over time). This is why a leaking connection can be corrected by tightening the clamp. That is why the worst clamps are the best. Those D... spring hose clamps (Corbin) keep clamp load as the material creeps. A screw hose clamp won't do this unless you get the big-dollar USCG approved like constant tension clamps.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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