The Planted Tank Forum - View Single Post - Paintball Co2 Injection DIY Setup with Tons of Photos
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post #1897 of (permalink) Old 02-18-2012, 05:19 AM
Algae Grower
Join Date: May 2011
Location: United States
Posts: 37
How can you tell when the needle valve is on or off? (the gold thing in the post above)
When the handle is twisted to align with the threads is it on or off? What about when the handle makes a 90 degree angle with the threads?
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