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CLASSIC EDGE OUTDOOR FURNACE • OWNER'S MANUAL
WATER QUALITY AND MAINTENANCE
An important part of outdoor furnace maintenance is controlling the quality of
the water in the outdoor furnace.
Water Test Kits and Test Results
DATE
pH LEVEL
NITRITE LEVEL
Record the results of pH and nitrite level tests in the table above.
If additional space is needed, record on a separate sheet of paper.
It is very important to keep record of water test results (include the date, pH
and nitrite level). If subsequent water tests indicate a pH that is too low and/or
a nitrite level that is too high, the results should be verified using a new test kit.
The pH test strips and Permanganate Reagent each have a varying shelf life
that can affect their accuracy. Test kits should be stored in a dry area at room
temperature to obtain maximum accuracy over a longer period of time.
The pH of the water in the outdoor furnace will not decrease unless fresh water
is added to the furnace. The nitrite level of the water in the outdoor furnace
will not increase unless Corrosion Inhibitor Plus™ is added. For example, if a
water test in the fall of the year indicates a pH of 8.5 and a nitrite level of 20
drops by nitrite test (2000 ppm) and no water or Corrosion Inhibitor Plus™ is
added, a water test the following spring must indicate a pH of at least 8.5 and
a nitrite level of no more than 20 drops by nitrite test (or slightly less, due to
evaporation).
