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<p class=MsoNormal><span style='color:#1F497D'>Thanks to Ron, Dale, and Allan
here for sharing their experiences and materials regarding belly press hose. I
will see if I can find a reasonably local supplier for fire hose – I hadn’t
considered that aspect.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Ouch!! Oomph! Urnhh! That’s
the sound of me kicking myself in the butt for buying cheap crap from Home
Depot for $30. I took the hoses apart today, and the rubber hose had already
permanently expanded to a larger diameter after only a couple of inflations to
40 PSI, and clearly the markings of the hose clamps meant it wouldn’t
last long anyway. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I can give myself a little pat
on the back though. None of the end caps at any of the fittings leaked –
only the hose itself. I did spend good money and didn’t chintz on those
items, and put them together very carefully with the Teflon tape and severe
tightening. So, with the right hose, I think I’ll be in good shape. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Allan – should I set up a
bulls-eye across the room and get in a little target practice? None of mine
shot across the room when I was testing. Now I’m disappointed. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Will Truitt<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> pianotech-bounces@ptg.org
[mailto:pianotech-bounces@ptg.org] <b>On Behalf Of </b>Allan Gilreath, RPT<br>
<b>Sent:</b> Saturday, September 27, 2008 12:06 PM<br>
<b>To:</b> Pianotech List<br>
<b>Subject:</b> Re: hose for belly press<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Good afternoon Will,<br>
<br>
As you've seen, firehose seems to work best for most of us. I've pressed quite
a few boards with mine now and, although I keep changing other aspects of the
design, the firehose works great. I use pvc end caps with multiple hose clamps
around them. On the end that connects to the air supply we use a pvc end cap
with a Legris bulkhead fitting. This allows for a self-sealing attachment to a
4mm supply line with tee junctions. This way we can spread up glue and clamp
one rib at a time. The 4mm hose allows for a relatively slow fill and release
the pressure. Another nice thing about it is that you can even use a hemostat
to clamp off a section. I leave mine pressed overnight and connected to the
compressor just in case there are any leaks. In coming up with system to seal
off the ends of the hose, we actually shot a couple of the end caps across the
shop so be cautious with the setup. <br>
<br>
We got the hose as the cut-offs from a local fire equipment supplier since the
lengths that we need are so short.<br>
<br>
Hopefully this will help get you started. <br>
<br>
Allan<br>
Allan Gilreath, RPT<br>
<br>
Will Truitt wrote: <o:p></o:p></p>
<p class=MsoNormal>To the bellymen on Pianotech Forum:<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>I have built a set of cauls for gluing ribs to the panel
using air pressure. I discovered yesterday that the 1 ˝” rubber
hose that I bought from Home Depot is most decidedly not ready for prime time
– no matter how much I tighten the hose clamps on the hose at the ends,
air still bleeds out at an alarming rate (easy to see when you inflate the hose
and stick the end into a pail of water). After discussion by phone yesterday
with Jude Reveley, I am confident that the material is inadequate.
Pressure ratings aside, it simply is not substantial enough to resist the air
pressure. <o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>Jude has recommended a ribbed nitrile/PVC hose, which is
what he is using in his setup with good success. I am looking for a
source for such that I can quickly order it online, hopefully in smaller
quantities. <o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>I would also consider other hose materials that our bellymen
are using with good success and reliability. <o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>Thanks in advance for anything you share<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>Will Truitt<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
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