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DWT Testing Parameters

Measures 46 water quality parameters, including mains water data, to provide a comprehensive analysis of the system water and identify potential issues.

Ieva Burns·August 26, 2026

Parameter

Sample Measured

Mains Measured

Appearance

Yes

Yes

pH

Yes

Yes

Conductivity uS/cm

Yes

Yes

M-Alkalinity As CaCo3 mg/L

Yes

Yes

Total Hardness As CaCo3 mg/L

Yes

Yes

Hardness Deposition %

Yes

-

Calcium mg/L

Yes

Yes

Magnesium mg/L

Yes

Yes

Chloride mg/L

Yes

Yes

Excess Chloride mg/L

Yes

-

Lithium mg/L

Yes

Yes

Sodium mg/L

Yes

Yes

Potassium mg/L

Yes

Yes

Aluminium mg/L

Yes

Yes

Iron mg/L

Yes

Yes

Copper mg/L

Yes

Yes

Phosphorus mg/L

Yes

Yes

Boron mg/L

Yes

Yes

Molybdenum mg/L

Yes

Yes

Sebacate mg/L

Yes

-

Nitrate mg/L

Yes

-

Nitrite mg/L

Yes

-

Sulphates mg/L

Yes

-

Refractive Index

Yes

-

Monopropylene Glycol %

Yes

-

Postal Test Comparison

The table below shows the various chemical testing parameters for the postal Fernox water testing products.

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