Where is the leak?
Switch off your internal stop tap.
Run your kitchen or a bathroom tap – it should flow for a few moments and then dry up – this confirms that you have successfully switched off your internal stop tap and isolated your property from the supply outside.
Take a third meter reading and then wait 15 minutes.
Take a fourth meter reading.
If your meter readings are the same, then you have a leak inside your property. We can tell this, because closing your internal stop tap has stopped the leak. Check the ‘The leak is inside my home’ section below for advice on what to do next.
If your meter readings are different then you have a leak outside, between your water meter and your internal stop tap.
Check the ‘The leak is outside my home’ section below for advice on what to do next.