Water tasting bad - WHY

It is OK gaining some weight - dissolving in water old hardened stuff.
Water may taste horrible when the mouth has it own share of toxins circulating, so the water dissolves some of them and this is what gives the bad taste.
One of my relatives had problem with drinking water at any time, because she was hugely toxic and there wasn't any water that tasted OK for her in her entire life. ... good that this happens to you only in fasting mode.