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Place the test vial on a white part of the color scheme and compare the colors by looking from above
the formula rapidly binds to phosphate molecules making them inactive and easily filtered out
The principle is the same as it was decades ago
After color change is complete compare number of drops to ppm potassium chart below
skimmer draws water directly from sump
Frogskin Lepto AUG10 Place the test vial on
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