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Old 11/11/2020, 03:26 PM   #1
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Join Date: Feb 2016
Location: England, Earl Shilton
Posts: 1,437
High Tin on icp test

Hello I've got super high tin reading on my icp test. No other metals. The reading is Tin 148 g/l, where would this be coming from? I cant see anything obvious, thanks.

If in doubt ask!
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Old 11/20/2020, 08:33 AM   #2
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Join Date: May 2013
Location: Australia - Sydney
Posts: 32
I was having the same problem a while back and after much research, I came across fellow reefers informing me that it was coming from my PVC pipes/plumbing.

Apparently, it has to do with the way extruded tubing, such as PVC pipes, are manufactured. It might help for you to research further into extrusion coating and the like. Tin stabilizers play an important part in the production of PVC due to the high heat and stress imposed on PVC products during manufacturing.

Although the following link:
states that no organotin (Tin) stabilizers are a health concern for PVC pipe used in drinking water systems and how there are health regulations regarding chemicals migrating from products that come into contact with potable water, however, there is no mention of PVC and its possible effects when dealing with saltwater.

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