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Old 01-29-2013, 08:23 AM   #31
DarkCobra
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Quote:
Originally Posted by Hoppy View Post
A photo showing exactly what you are referring to would be very good
As you wish.



We don't need the airstones, just those clear plastic adapters inside. A cross sectional view of what I described:



Shoving that adapter hard into the tubing expands it a lot more securely against the edges of the hole, than just pulling tubing through a slightly undersized hole. The finished product:

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