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Gerbrand
Joined: 13 May 2008
Posts: 199
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| Posted: Thu Nov 18, 2010 9:04 am Post subject: Little bubbles in glycol, will they go away? |
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Hello all,
I have been retubing my BG1209s with the P19LUGs Terry sold at the beginning of the year. I have now put clean glycol back in the LC chambers, but for some reason I am suffering from tiny air bubbles that stick to the surface of the C-element. They are very much like the bubbles you see sticking to a glass of water.
I have installed the tubes to see if they would fire up (they did). My question now is: I assume that the bubbles will go away when the glycol is heated up a bit by the tube, due to the effects of convection etc. Do you agree? Have you seen anything like this before?
Thanks,
Gerbrand
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BG1209s (color filtered,new LUGs!), 13000h
Bat cave
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SweetChuck
Joined: 01 Jun 2007
Posts: 134
Location: Queensland Australia
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| Posted: Thu Nov 18, 2010 9:34 am Post subject: |
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They will go away , but it can take up to 2 weeks depending on how often its used , temperature etc , It will affect PQ with colored haze so don't bother doing a super great setup until they vanish
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secstate
Joined: 20 Mar 2006
Posts: 720
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| Posted: Thu Nov 18, 2010 12:22 pm Post subject: |
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Yep they will go away. Usually within a week. I find that heat/cooling cycles seem to make them go away faster so I just run the projector for a few hours on and then off for a few.
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waterlily
Joined: 29 Aug 2008
Posts: 44
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| Posted: Thu Nov 18, 2010 5:32 pm Post subject: |
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Agree with all above. I posted the same question some time back. 
Sure enough, a couple weeks later they were gone.
I didn't do anything special, tubes where out of the PJ just sitting.
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tse
Joined: 03 May 2006
Posts: 1014
Location: Sweatbucket, Fl.
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| Posted: Fri Nov 19, 2010 1:10 am Post subject: |
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I wonder if a surfactant like simethicone would work to break up the bubbles. Just wondering...
Scott
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"Were we directed from Washington when to sow and when to reap, we would soon want bread."
Thomas Jefferson
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Fri Nov 19, 2010 1:32 am Post subject: |
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Or, stop using champagne as glycol.
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secstate
Joined: 20 Mar 2006
Posts: 720
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| Posted: Fri Nov 19, 2010 2:07 am Post subject: |
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Ah so that is what I have been doing wrong. I have been drinking the glycol and using the champagne for the coolant when it should have been the other way around. No wonder I have headaches and a "yellow push" in my CRT picture.
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dturco
Joined: 06 Feb 2009
Posts: 3778
Location: Eastern Shore Maryland
TV/Projector: Runco DLP VX-3000i Marquee 9500 parts doner
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| Posted: Sun Nov 21, 2010 12:50 am Post subject: |
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| tse wrote: | I wonder if a surfactant like simethicone would work to break up the bubbles. Just wondering...
Scott |
Good one Scott.  
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Firefly rules. Can't stop the signal.
http://www.hulu.com/firefly
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