Closed Water Systems Test Kit


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  • Ideal for mobile treatment engineers.

  • Compact & portable design.

  • Easy to follow waterproof instructions.

  • Clear product labelling.

  • Key treatment parameters included;

    • Conductivity/TDS,

    • pH (0.00 to 14.00),

    • Temperature,

    • Iron HR (0.5 to 10 mg/l),

    • Molybdate (0 to 500 mg/l),

    • Nitrite HR (0 to 2000 mg/l).

Note: Range is dependant on measuring instrument used.


The DTK comprehensive Closed System Test Kit for heating and chilled water systems has been developed specifically for engineers and treatment professionals responsible for the maintaining and management of closed water systems. This test kit has been designed to include the key parameters which enable the optimum operating conditions in these water systems.

The kit provides accuracy and speed, utilising drop test and comparator reagents together with electronic meters for the most efficient monitoring of water samples. The reagents and equipment are specified below.

The CLK003 is supplied in a robust carry case with reagents and instruments secured by a high quality chemical resistant foam insert with sufficient chemical reagents to carry out between 100 and 200 tests.


Closed Water Systems for Low Pressure Hot Water (LPHW), Chilled Water & Heating require regular and careful monitoring to ensure the correct water conditions are maintained within an approved treatment programme.

Any failure to maintain the correct levels and dosing of the chemical treatments can lead to;

  • Corrosion of the system (leaks),

  • Formation of scale (blocked pipes),

  • Increased biological activity.

These can lead to unstable water conditions with potential negative consequences to the life of the plant and operating costs.

Test Kit and Contents

CLK003 – Standard Closed Water Systems Test Kit

Contents Range Displayed As Code
TEKNO 2011 Medium Case with Foams EDT028/2
Waterproof Instructions EDT084
20 ml Standard Syringe EDT168
5/10 ml Tube c/w Screw Top EDT015
CHECKIT® Comparator EDT085
2 x 10 ml Square Plastic Cells EDT006
pH1 – pH/Temperature Meter
0 to 14

EC1 – Conductivity/TDS/Temperature Meter
0 to 20.00

30ml Calibration Cup x 2

Iron HR (Comparator)
0.05 to 10

mg/l Fe
CHECKIT® Iron HR Disk 146320
FE10 (65 ml) SDT247
Molybdate VHR (Comparator)
0 to 500

mg/l MoO4
Molybdate VHR Disk 146295
Molybdate HR (65 ml) SDT127
Nitrite (Drop Test) 10 to 2000 mg/l NaNO2
N1 (65 ml) SDT072
N2 (65 ml) SDT073
Calibration Solutions for EC1 & pH1 Meter
Conductivity Standard 1413 µS (65 ml) SDT109-65
pH 4 Buffer Solution (65 ml) SDT119-65
pH 7 Buffer Solution (65 ml) SDT118-65
pH 10 Buffer Solution (65 ml) SDT161-65

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