February, 2004
 
Volume 4, No. 1

Inside this Newsletter

1. SeaQuest
vs. Zinc Orthophosphate


2. All phosphate products are equal. Do you want to bet?

3 Do electromagnetic devices work on calcium salts?

4.Thought of the Month

5. Over There

6. Anyone know the answers?

1

SeaQuest versus
Zinc Orthophosphate

This case history is of a southeastern US public municipal water supply system of approximately 60 MGD with a very long history (over 20 years) of zinc orthophosphate use along with pH (sodium hydroxide) addition for corrosion and lead/copper control. This system began to run into the problem of too much zinc in their waste water sludge and made the decision, along with their prominent engineering consultants to switch to a non-zinc containing drinking water corrosion control additive. After conferring with their engineering consultants who surveyed the total competitive product market, they determined that SeaQuest was the best choice given its long constant history of success in a variety of water qualities and locals.

In the process of converting over from zinc orthophosphate, the customer allowed their supplies to drain down to a very low level, then flushed their storage tanks clean, and then filled them with SeaQuest Liquid. Water quality monitoring done daily and monthly, continued with SeaQuest use as it had been for the zinc orthophosphate, so after 12 months of use, there was excellent comparative data to insure that the SeaQuest was doing at least as good as the zinc orthophosphate, if not better. This municipality was not looking for improvement, but only maintaining what they were used to with the results from use of the zinc orthophosphate, while eliminating the zinc from their waste water sludge which was about to become a very expensive regulatory disposal matter if left unattended.

The following benefits have been noted after use of SeaQuest for one year:

1) Prior to SeaQuest treatment, the zinc levels in the
distributed water was as high as 0.25 ppm and
after one year of SeaQuest the level came down
to 0.039 ppm.

2) The phosphate level in the finished treated water
prior to SeaQuest was 0.75 ppm and after Sea
Quest treatment went down to 0.50 ppm.

3) Prior to SeaQuest, of 1,548 sites tested over
9 months, 350 sites (23%) were showing chlorine
residuals below 1.0 ppm

4) Since SeaQuest, these same 1,548 sites tested,
only 203 sites (13%) were showing chlorine
residuals below 1.0 ppm. This represents a 42%
decrease in the number of sites below 1.0 ppm
since the start of SeaQuest treatment.

Aqua Smart Inc. 4445 Commerce Drive SW, Suite A4, Atlanta, Georgia 30336 USA
1-800-AQUASMART

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