Cathodic protection at Mirehouse

I posted about cathodic protection of pipelines last August http://wigtonphysics.blogspot.com/2020/09/cathodic-protection-anode.html I have now found this example closer to home at Mirehouse. As explained previously, the system needs a power supply and this must be one of the points where its working can be checked. The pipeline is steel so it could corrode.