Note:
Risk of corrosion can cause equipment damage. Contact a water
consultant about water quality, corrosion and freeze protection
requirements. Water chemistry varies greatly by location, as do the
required additives, called inhibitors that reduce the corrosive effect of the
fluids on the piping systems and components. The chemistry of the water
used must be considered, because water from some sources may contain
corrosive elements that reduce the effectiveness of the inhibited
formulation. Preferably, surface waters that are classified as soft and are
low in chloride and sulfate ion content should be employed. Proper inhibitor
maintenance must be performed to prevent corrosion of system
components. Consult glycol manufacturer for testing and maintenance of
inhibitors.
Commercial ethylene glycol, when pure, is generally less corrosive to the
common metals of construction than water itself. It will, however, assume
the corrosively of the water from which it is prepared and may become
increasingly corrosive with use if not properly inhibited.
referred to for more complete details.
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