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BOILER WATER TREATMENT CHART


Too low
Too high

Cause /Result
Remedy
Cause /Result
Remedy
Alkalinity
Acidic corrosion
Dose alkaline chemical(NaOH)
Caustic corrosion
Blow down.
Chloride

Too lower the better
Do nothing.
Heavy scale formation.
High TDS.
Acidic corrosion.
Identify & stop leakage.
Blow down.
 Phosphate
Scale formation
Add phosphate chemical.
High TDS.
Foaming, priming& carryover.
Blow down.
Conductivity / Hardness/          TDS

 Dose chemical.
Foaming, priming& carryover.
Blow down.
Hydrazine
Oxygen corrosion.
Dose hydrazine chemical.
Increase hot well temp.
Ammonia attack.
Blow down.
 Condensate    pH
Can cause acidic.
Cond. Control
Avoid leakage.
Increase hot well temp.


Oil
Improper heat transfer.
Foaming, priming & carryover.
Immediate scum blow down.
Oil in cascade tank.
Stop source of leak.

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