What are the steps to start the Diagnostic Water Test?

Fill the sample bottles with Heating System Water and Fill Water.
Secure the lids to prevent spillage.
Open the app and from the dashboard click on the Scan Icon button, then on the text selection pop-up, select New Postal Test. Use your smartphone camera to scan the QR code.
For a detailed, step-by-step guide on how to use the Diagnostic Water Test, please refer to this guide.

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