All Organic Closed Loop Water Treatment

Looking for closed loop water treatment alternatives to Molybdates and Nitrites for your closed loop heating, chilled and process water systems?

AQUAGUARD 179 has been specifically developed as an all organic scale and corrosion control product to replace molybdate and nitrite based treatments which suffer from issues regarding waste discharge (heavy metal) and biological control (nutrient for bacteria) respectively.

AQUAGUARD 179 is a complex organic blend containing phosphonates, polymers, yellow metal corrosion inhibitors and buffering agents to control pH at approximately 8.5 to 9.5.


  • Fully formulated all organic blend for effective scale and corrosion control.
  • Safe, economical and effective alternative to programs that utilize nitrite or heavy metal inhibitors such as molybdenum.
  • Environmentally friendly organic blend.
  • Concentrated for cost effective use.
  • Safe for use in systems currently treated with sulphite.


AQUAGUARD 179 can be used to control scale and corrosion in closed loop heating, chilled water and process water systems. In systems where concrete storage tanks are used, a full evaluation should be performed before applying AQUAGUARD 179.

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