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Old March 20, 2012, 10:00 AM   #3
Pahoo
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Join Date: February 16, 2006
Location: IOWA
Posts: 8,783
Can Do !!

Quote:
Has anyone here done this themselves and had good results? Thanks y'all for any helpful advice.
Don't know about great results but after I did, got good performance. This has been a few years since I did this. I used Nitrogen as the fill. I Only cleaned the outboard lenses and Sealed the threads, on the bells with a high grade of silicon grease. When I filled, I help the scope vertically, filled from the bottom, inserted the fill tube as far into the scope as it would safely allow me to do. Give it a few seconds for the Nitrogen to displace the ambient air inside. Then re-install the last bell. ...

Have no working knowledge of Argon/CO2 but Nitrogen is lighter than air and once you have the pressure inside, it will displace the air. You really don't need much, just inches of water column. ....
Good luck; Said Marco from Tropoya ....

Be Safe !!!
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Last edited by Pahoo; March 20, 2012 at 10:35 AM.
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