Wanda, hi the answers to your questions are "yes" and "yes".

Yes, it's bad to drink "too much water" - but 3.5 - 4.5 litres isn't too much. And it's not bad in that you shouldn't drink that much water, it's bad in that it is in relation to not getting other things (such as potassium, sodium, and minerals). It's all about the right balance and ratios - if you drink the water you need to make sure you're getting everything else as well.

The supplements we take as LCers are sufficient for the water we drink - even those of us who drink more than 'average' - it's people engaged in intense exercise or activity for long durations that experience the deleterious effects of 'drinking too much water'. Think Marathoners, construction workers on very hot days, etc. BTW, it's called "Water Intoxication"

HTH
Nat