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Old 07-29-2009, 07:09 AM   #1
Bru
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Default Air pump question

I recently aquired an aquarium air pump :
1.) I can't find a stainless or brass airstone anywhere - can I use the standard stone ? It appears to be made from sand granules. I will obviously sanitize the stone.

2.) I also can't find a syringe filter. The pump has a built in filter - can I use it as it is or should I make a filter ?
Palmer recommends a filter from "a tube and wet cotton wool" - wet cotton wool is normally impervious to air - how does this work ?


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Old 07-29-2009, 09:28 AM   #2
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Why haven't you done a Google search? There are about 50 homebrew sites that carry the stainless steel aeration stones on Google.


Air Stone 2 Micron - Fermenting Equipment - High Gravity

Aeration - Fermenting Equipment - Equipment

Stainless Steel Aeration/Carbonation Stone. 0.5 micron*::*Aeration Equipment*::*Homebrewing Equipment*::*Bader Beer & Wine Supply, Inc.

You should use a HEPA filter. There are a number of sites on Google for the HEPA filter also:

Aeration - Fermenting Equipment - Equipment

Syringe Filters (now with luer lock inlet)

Tisch Syringe Filters


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Old 07-29-2009, 11:40 AM   #3
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I know there are various places to get one and in the long run I will but it will take two weeks to get here and the shipping charges make it expensive.
Im hoping to find an alternative untill then.
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Old 07-29-2009, 04:27 PM   #4
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If you pick up the sand air stone and it can handle a couple minutes of boiling, I'd say it should work. Being mostly silicon the stone should be inert. I'd make sure the binding agent can handle the sanitization.

I would think if it works for fish aquariums it will work for beer. I believe the aquarium standards are higher than our food standards...
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Old 07-29-2009, 04:34 PM   #5
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order one, and until then just shake the fermenter to get the job done. Honestly, I got one of those pump setups, use it one time and never again. My brew days are long enough without waiting an extra 30 + minutes for a pump to do what I can do better in 30 sec. Just my $.02
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Old 07-30-2009, 06:53 AM   #6
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30 minutes ? As long as that ? I thought it would be quicker.
The last thing I want is for the stone to ruin my first AG because it breaks up or leaves peices behind.
Our local gas suppliers charge a monthly rental for an oxygen cylinder so its out of the question untill I can buy one.
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Old 07-30-2009, 12:31 PM   #7
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you can get the mini "propane-torch" style oxygen tanks at Lowes or Home Depot, check with the soldering equipment. Supposedly you get 10 or so batches from one 8 dollar tank.... that's what i use.

30 seconds of oxygenation, and you are good to go.

Brewmasters warehouse has the regulator kit i use:

http://www.brewmasterswarehouse.com/...System-0102046
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Old 07-30-2009, 12:49 PM   #8
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Trouble is - Im in South Africa - no Lowes - but I need to still check some of the bigger hardware stores here.


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