A basic check is that the indicator light on the Integro™ control box is on. Beyond this we will identify areas within your water system where you are experiencing problems with hard water, you will be able to see the difference yourself (shower heads, taps, dishwashers, etc). Where the problems are internal and can’t be seen we can look at other ways of measuring that the system is working. In the case of a boiler we may fit a pressure gauge on the inlet in order to track the reduction in pressure as existing scale build up is removed, and then a steady pressure being maintained thereafter. We can look to take water samples from different points in the water system measuring the levels of TDS’s to ascertain that historical build up is being broken down, and then again this will level out on an ongoing basis. In all cases we will work with our customers to agree a system of monitoring the effectiveness of the solution.