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Boiler Safety Checklist & Preventative Maintenance

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Softeners for water

Water hardness (calcium and magnesium) is a problem. • An ion exchange system is used to soften the water. The water leaving the softener contains sodium compounds rather than calcium and magnesium.

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• A common water softener has a resin ingredient that is converted to calcium and magnesium zeolite and regenerated with salt or sodium chloride for the zeolite.

Water should be treated in accordance with the manufacturer's guidelines.

Allowable water hardness is typical. (Boilers with firetubes)

• 50-75 ppm for 100 psi steam; • 20 ppm for 200 psi steam

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