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CLASSIC EDGE OUTDOOR FURNACE • OWNER'S MANUAL
NOTE: If the system has a larger than normal water capacity, more Corrosion Inhibitor
Plus™ should be added at a recommended rate of one unit per 180 gallons (681 liters) of
water.
1. Add the recommended amount of Corrosion Inhibitor Plus™ through the
vent pipe at the top of the outdoor furnace.
2. Use pressurized domestic water to fill the outdoor furnace and purge the
system of air (see Fill Outdoor Furnace with Water and Purge Air section
in the Installation Guide).
Testing Treated Water in the Outdoor Furnace
1. To obtain a system water sample, it will be necessary to bend the sight
gauge tube away from the outdoor furnace. Before collecting the sample,
open the valve and drain about a quart of water from the sight gauge tube;
then carefully fill the sample container without contaminating the sample.
Be sure to properly install the sight gauge tube and close the valve when
finished.
The water in the sight gauge valve and tube will drain when the
valve is closed.
CAUTION
The water in the sight gauge may be hot. Use caution when obtaining a sample.
2. If no antifreeze is present in the water, use Test Kit (p/n 405). If antifreeze
has been added to the water, use Test Kit (p/n 597).
3. Dip the pH test strip from the test kit in the water sample. Shake excess
water off the test strip. Compare the color of the test strip to the chart
provided to determine pH level. The pH of the water should now be
between 8.0 and 9.5.
4. Rinse and fill the sample tube to the 25 mL mark with treated water from
the outdoor furnace.
5. Add 25 drops of Sulfuric Acid (p/n 404) to the water sample and swirl to
mix.
Sulfuric Acid is a corrosive acid. Handle carefully. Carefully read and follow precautions
on test chemical labels. Keep test chemicals away from children. Safely dispose of
tested samples.
6. Using the dropper, add Permanganate Reagent (p/n 403) one drop at a
time, swirling the water and counting each drop, until the color changes
from colorless to a faint pink that persists for at least one minute.
