Re: NANFA-- plankton/small shrimp safe water pumps

John Bongiovanni (bongi_at_cox-internet.com)
Wed, 26 Feb 2003 22:06:45 -0600

Moon,

Go to www.labx.com This is a used lab equipment site. Do a search for
pumps. I saw two or three peristaltic pumps for sale. New ones are
typically several hundred dollars. Ad# 152321 looks like a good
possibility though it is only one speed. Current bid is $28.00

John

Moontanman_at_aol.com wrote:

>In a message dated 2/25/03 3:57:08 PM Eastern Standard Time,
>bongi_at_cox-internet.com writes:
>
>
>
>>Peristaltic pumps used in the medical industry might work if I understand
>>your need. These are low volume pumps. There is no impeller. They
>>
>>
>consist
>
>
>>typically of three rollers(ball bearings) on a rotor. The supply tube is
>>wrapped around a cassette containing the rotor. The tube is situated
>>
>>
>between
>
>
>>the housing and the rotor. As the rotor turns the tube is compressed
>>
>>
>forcing
>
>
>>the fluid within the tube to advance (flow). If you could locate one of
>>
>>
>the
>
>
>>auction houses or medical supply/surplus stores you could get one
>>
>>
>relatively
>
>
>>cheap. The advantage is that you could adjust the flow to very low to
>>
>>
>heavy.
>
>
>>
>>
>>
>>
>>
>That sounds like an idea I might try at some point, finding one will of
>course be the trick.
>
>Moon
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/ For more information about NANFA, visit our web page, http://www.nanfa.org