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Hi Mega

If this is a recent change, you may also want to look at the source of your water & whether it or its fundamental chemistry has changed.

A water utility I was once with had an issue when they changed from a high dissolved oxygen source to a low dissolved oxygen source. The old galvanised mild steel pipes were used to a certain level of oxygen in the water. When the oxygen levels dropped the rust in the pipes started to dissolve causing a fairly major incident as customers understandably didn't want to drink the water.

Kind regards

Martin