Has anyone tried this to silence an air pump?
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Old 02-25-2013, 11:03 PM   #1
hlaalu
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Has anyone tried this to silence an air pump?


First please don't try this, as I'm not 100% sure it's safe yet. Still doing research on the components.

But it's simple, rather than putting your airpump on something, or in something, I put some filter foam inside my airpump to absorb the vibration. And I'm stunned at how well it works. It easily reduced the noise by half.



I was thinking about taking this a step further by perhaps using expanding ventilation foam (from the can) to fill in all the gaps completely. However that is more of a hard foam so I would still need some flexible foam to put around the moving parts.

My next idea is to buy a block of soft rubber, and make the housing out of that.

And yeah, I'm bored over here.
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Old 02-25-2013, 11:33 PM   #2
mistergreen
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The sound is most likely coming diaphragm. You might need a new one.
The padding is only making the pump less efficient. It reduced the noise because it reduced the movement of the arm. It's not a bad way to reduce the amount of air going through.
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Old 02-26-2013, 12:35 AM   #3
Soothing Shrimp
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+1 But we only learn from experimenting, right?
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Old 02-27-2013, 07:44 AM   #4
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Quote:
Originally Posted by mistergreen View Post
The padding is only making the pump less efficient. It reduced the noise because it reduced the movement of the arm. It's not a bad way to reduce the amount of air going through.
Yeah actually that makes a lot of sense! Back to the drawing board

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Originally Posted by Soothing Shrimp View Post
+1 But we only learn from experimenting, right?
Yup! and it's fun trying to bring life to old equipment
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Old 02-27-2013, 10:43 AM   #5
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Expanding foam will ruin your pump. That stuff expands with enough force to deform window casements if you dont use enough screws or nails.
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Old 02-27-2013, 08:53 PM   #6
HD Blazingwolf
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yes i''ve stuffed one before, and even measured the heat difference.
it worked, and only got a few degrees warmer over a 24 hour period
i used pillow batting
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