Was you tank fully cycled before hand? How long was the filter off for?
It was possable that your water company had treated the water for the reason of flushing the system. Did you test water in the morning for pH? Just a possability as here in England it is not uncommon for pipes to be treated 2-3 times a year.
Dan
It was possable that your water company had treated the water for the reason of flushing the system. Did you test water in the morning for pH? Just a possability as here in England it is not uncommon for pipes to be treated 2-3 times a year.
Dan