Thanks for everybody's help & input
and sorry for piggy backing onto someone else's thread.....
There's a wealth of knowledge on here, but tweaking the water will be something lower down on my list
of things to address & learn with the switch from kits to extract & then maybe to grain...
Eric, They are indeed doing a lot of work on our estate, replacing sewage pipes, diverting the burn and putting in pumped storage tanks to try and alleviate the flood risk, so it makes sense that they may well have bumped up our "treatments" to cover for any increase in nasties in the supply given the underground disturbances.
In fact thinking back, it's probably around the time of the last big flood that I started to noticed the change in taste and smell. Hmmmm....
