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Re: Polymer/Nexguard Nalco

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Posted by Vern on November 22, 2003 at 07:32:30:

In Reply to: Polymer/Nexguard Nalco posted by Tom Crocco on November 20, 2003 at 18:13:13:

: We've switched chemical suppliers using a new polymer and trying to maintain between 1285-1434 as recommened by them. What we are experiencing is boilerwater with a green tint and when the steam drum was opened,even the inside had a very slight greenish film. This does not sound normal.
: Has anyone else ever experienced this? even the meter recommended by them does not read that high so they told us to dilute boiler sample by 50% and multiply results by 2.

Some of Nalco's products will turn the water green, I believe that's how they measure their product for concentration in the water. As for the meter, it should have a range high enough to read your water without dilution, but since it is not, they are having you dilute and multiply by two. This is common practice when you don't have a high enough range. However, be careful doing the dilution as this can introduce an error factor into the final result. Personally, I think Nalco overcharges for their products and doesn't deliver enough service for the cost you pay. A good regional watertreater will give you the same quality service or better, and excellent water treatment products for less cost. Go to www.awt.org and you should find several for your area.

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