DIY co2 - Drilling the caps - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 12-11-2009, 04:25 PM Thread Starter
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DIY co2 - Drilling the caps

What do you guys use to drill the holes in the tops of the caps? I'm looking at doing 4x 2 liter bottles but I'm noticing the caps are pretty hard plastic. Suggestions?

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post #2 of 10 (permalink) Old 12-11-2009, 04:28 PM
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Drill or hot metal stick?
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post #3 of 10 (permalink) Old 12-11-2009, 04:36 PM
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Use a soldering iron.

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Originally Posted by angelicodin View Post
What do you guys use to drill the holes in the tops of the caps? I'm looking at doing 4x 2 liter bottles but I'm noticing the caps are pretty hard plastic. Suggestions?
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post #4 of 10 (permalink) Old 12-11-2009, 04:41 PM
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boil some water, pour in some grinded coffe beans, drink it, put a lot of elbow grease on a red hot screwdriver tip, push it hard and make a marvel of a hole in that caps.... :P
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post #5 of 10 (permalink) Old 12-11-2009, 04:44 PM
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11/64 drill bit with the cap screwed on the bottle. Don't push hard, let the drill work for you. Then use a pair of pliers to pull the tubing through.

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post #6 of 10 (permalink) Old 12-11-2009, 04:57 PM
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Tip of a kitchen knife (when the wife's not home). Twirl it around 7 or 8 times til you get the right sized hole.
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post #7 of 10 (permalink) Old 12-11-2009, 07:28 PM Thread Starter
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Awesome, thanks guys.

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post #8 of 10 (permalink) Old 12-11-2009, 08:11 PM
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Yeah, a pair of scissors that have had a lighter held to the tip works well.
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post #9 of 10 (permalink) Old 12-11-2009, 10:28 PM
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I second the 11/64 bit. Cut the tubing at a 45 and pull it through with pliers.

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post #10 of 10 (permalink) Old 12-11-2009, 10:48 PM
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Quote:
Originally Posted by sewingalot View Post
11/64 drill bit with the cap screwed on the bottle. Don't push hard, let the drill work for you. Then use a pair of pliers to pull the tubing through.
cut the tube at an angle, easier to get it started in the hole.
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