[Shop-talk] The air saga continues...

[John T. Blair]

At 10:25 PM 5/30/2011, eric at megageek.com wrote:

 >Well, after a brief day of not bothering with the new air lines 
(because I  had a
 >huge tree to remove) I'm back to getting the new air lines squared  away.
 >
 >When we last left this saga, I had some success with epoxy to seal 
the  bigger
 >leaks (audible.)
 >
 >But, now I'm up against a harder problem.  The system has minor 
leak(s) in it.
 >It's still usable, but when I test it for pressure, it will bleed 
down completely in
 >a few hours.

A couple of things you can try:

1. you might want to try addind some die (like for AC system) to the line then
connecting air to it and letting the air leak out.  This should let 
the die leak out,
and with the glasses and light you should be able to find the leak.

2. I think someone also suggested this try filling the system with water.  Then
pressurizing the system.  The water should leak out where the leaks are.

3. I had mentioned in a previous post that I'd ended up using the 
epoxy putty on
my installation.  I think I but a bead/rope of that around every joint.

For some reason, a big difference when we do something vs the people 
that installed the black pipe for my gas logs.  They didn't have any 
of these problems.
To check their conintions they used soapy water, and a pressure gauge.  Closed
off the system, put the pressure gauge on, pressurized the system, and came
back in a couple of days.  Still holding the pressure.

John




>My questions are as follows...
>
>How do you find these minor leaks?  I have hundreds of joints and many of
>them are barely accessible.  I've been using dish soap with water with
>only limited success.  Is there another or easier way?
>
>Then there is my idea and I'm wondering if it will work or if there is a
>better  product out there like this...
>
>I should be able to introduce a fluid of sorts into the air stream.  The
>fluid will find its way out of the leaks and clog them up.  I was thinking
>of using tire slime for this purpose.
>
>Now, I realize that I have to be careful to let it get all over the lines,
>then I need to get it out of the lines before I start using tools.  This
>shouldn't be a problem.
>
>Is there a product designed for this?  Is there a better way to find/fix
>leaks?  I'm sure I'm not the first bubba with this issue.
>
>Thanks!
>
>Moose
>"Be as beneficent as the sun or the sea, but if your rights as a rational
>being are trenched on, die on the first inch of your territory." Ralph
>Waldo Emerson
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John T. Blair  WA4OHZ     email:  jblair1948 at cox.net
Va. Beach, Va
Phone:  (757) 495-8229

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