What causes dirty water coming from cold water side in tub?
If the water is coming from the main, it should not be dirty. If it comes from the cold water storage tank in the loft, maybe it needs to be cleaned or covered.
The phenomenon that causes water to condense on the windows in winter is the same as what causes water to condense on the outside of cold glasses. Because the cold glass of the window (or the cup) absorbs heat, the air around it is slightly colder. Because cold air can hold less water vapour than cold air, water condenses and gathers on the window.
I heard a radio program on NPR one day about laundry, and the person said that detergent made specifically for cold water washes are really much better for cold washing, and that aside from really dirty clothes, most of your clothes can be washed in cold water, using that special cold water detergent. Most laundry detergents are designed to be used in warm to hot water, and don't properly break down or clean well in…