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Old 07-03-2012, 05:34 PM   #41
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And a test of the 6vdc


probably good for recirculating, maybe help in bottling, who knows.



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Old 07-03-2012, 05:40 PM   #42
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Quote:
Originally Posted by stamandster View Post
Awesome! I'm happy it worked! Really quiet too! How'd you connect the inlet?
Had some spare vinyl tubing around. For the 12v, the inlet is 1/2"ID and the outlet is 5/16"ID.

For the 6v, I used 3/8" ID for inlet ad 1/4" ID for outlet. The 3/8" did not make a tight connection and it was dripping a little, but can probably use a clamp or find the right size tubing for it.



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Old 07-03-2012, 06:06 PM   #43
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I had planned on using one of these to circulate the water in my HLT for HERMS.

Also had a plan to use it to circulate ice water from one container into a fermentation container as a poor man's temp controlled ferm chamber.

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Old 07-03-2012, 06:11 PM   #44
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Have you tried it at temperature? I know some cheap pumps can fail to couple at near-boiling.
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Old 07-03-2012, 06:16 PM   #45
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Quote:
Originally Posted by daksin
Have you tried it at temperature? I know some cheap pumps can fail to couple at near-boiling.
I've ran mine up to 170f in a HERMS exchanger but the pump is located outside of the vessel.

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Old 07-03-2012, 06:27 PM   #46
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Quote:
Originally Posted by Homercidal View Post
I had planned on using one of these to circulate the water in my HLT for HERMS.

Also had a plan to use it to circulate ice water from one container into a fermentation container as a poor man's temp controlled ferm chamber.
I like the temp control idea. Could you use the small pump to cool your beer lines?

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Old 07-03-2012, 06:32 PM   #47
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Has anyone looked into using something like this?
http://www.harborfreight.com/heavy-d...ump-98384.html

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Old 07-03-2012, 06:34 PM   #48
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Has anyone looked into trying something like this?
http://www.harborfreight.com/heavy-d...ump-98384.html

Combine that with a cheap harbor freight drill, and you wouldn't need to worry about voltage adapters....

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Old 07-03-2012, 06:45 PM   #49
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By the way, I was able to run the 12v pump with a standard 9v battery and the 6v one from a usb port.

The 12v one did make a different sound with the 9v supply, so it was obviously not operating as fast as with the 12v supply. I did not notice any difference in the 6v pump when connected to the 5v supply (USB).

YMMV.

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Old 07-03-2012, 06:50 PM   #50
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Quote:
Originally Posted by BBBF View Post
I like the temp control idea. Could you use the small pump to cool your beer lines?
That's a good question. I can see a device that pumps chilled water through tubes around serving lines, but I think someone with actual line chilling experience pipe up. These pumps aren't built to have much lift. Too much resistance and it might not function properly.

The temp control idea is simply a small cooler or container with a block of ice and some water in it. When the temp in the ferm chamber turns on the control output, it turns on the pump which pumps the ice water into the top of the ferm chamber. When the water level reaches the drain hole it flows back into the ice block to get chilled.

I have no idea how practical this is, but I can see how it might save space and maybe some money depending on the price of a CL fridge and whether or not you had suitable containers. The hardest part was coming up with a cheap pump.



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