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MolyArmor 350 Corrosion Inhibitor, p/n 2900631, provides excellent corrosion protection and is easy to test for maintenance levels with a test strip (no messy chemicals for testing). One gallon of MolyArmor 350 treats 200 gallons of system water. To test the moly level, dip the test strip in the water sample taken from the furnace sight gauge tube on CleanFire models or from the drain valve in the rear of the furnace on traditional and Maxim models; then shake off excess water and compare color to the chart. Timing of visual comparison to the chart is important. If the color is the same or darker than the 350 ppm treatment level indicator then the moly protection level is good. There are no concerns if the moly level is higher than 350 ppm. The pH test will be used to confirm pH is between the treatment level of 8.0 and 9.5.
With MolyArmor 350 Corrosion Inhibitor, the level of molybdate, the passivation agent, will not be reduced if bacterial contamination occurs. Bacteria in a system still needs to be controlled by heating the system to 185°F (CleanFire and Maxim models) or 170°F (traditional models) if water is added.
If a traditional furnace is currently properly treated with CorQuest 1200, the operator can choose to continue to monitor the nitrite and pH levels. If the nitrite level falls below the maintenance level of 1500 ppm and they do not have any CorQuest available, the furnace should be drained, flushed and refilled using MolyArmor 350 to the recommended level, a minimum of 350 ppm. MolyArmor 350 can also be added to the water treated with CorQuest 1200 but if the nitrite falls below 1500 ppm, the furnace should be drained, flushed and refilled using MolyArmor 350.