The Planted Tank Forum - View Single Post - CO2 - Reuse 2 liter bottles?
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post #7 of (permalink) Old 03-07-2013, 02:05 AM
Algae Grower
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Join Date: Feb 2006
Location: ridgecrest,ca
Posts: 101
Sealing caps

One different approach is to get rubber stoppers from the hardware store, drill them to accept rigid Irline tubing, and then attach the airline to the stub through the plug.

Much easier than trying to seal a cap with silicone.
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