Re: [Killietalk] Cheapo-bulkheads;was RE: Help with O-ring size

["David Lains" <david at zfin_org>]

Hi Lee

We were pushing the envelope to see what's toxic.  I believe we were
exposing 50 fry in a 100 mls of water to a piece of material.  

I think the main culprits are the plasticizers (especially in the artificial
rubbers and vinyl) and the uv inhibitors.

Best Fishes
David Lains <}}}><
 
-----Original Message-----
From: killietalk-bounces+david=zfin_org at aka.org
[mailto:killietalk-bounces+david=zfin_org at aka.org] On Behalf Of
LeeH920226 at aol_com
Sent: Wednesday, January 18, 2006 2:28 PM
To: killietalk at aka_org
Subject: Re: [Killietalk] Cheapo-bulkheads;was RE: Help with O-ring size

Interesting observations. I have used washers made of unknown rubber for
several years for my bulkheads without a problem. The bulkheads are
colorless nylon.

Lee Harper
Media, PA
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