The Planted Tank Forum - View Single Post - Paintball Co2 Injection DIY Setup with Tons of Photos
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Old 02-18-2012, 05:19 AM   #1897
Algae Grower
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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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