Oatey’s Hercules Sludgehammer universal corrosion inhibitor protects against corrosion and lime-scale buildup. Suitable for all metals including aluminum, cast iron and stainless steel, it helps maintain heating system efficiency. Use the corrosion inhibitor along with Cryo-Tek antifreeze when installing new or replacement hydronic heating systems to prevent the buildup of scale and keep the system running efficiently, Oatey suggests. Use the Sludgehammer system restorer & noise reducer for older systems or when a new boiler is fitted to an existing system that has sludge and scale buildup.
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