Q. Why do I need hard drinking water in my domestic property?
A. All local water authorities recommend that you should drink the water they supply through your mains system. They are confident in the knowledge that the water they produce is of drinkable quality and therefore recommend it.
Q. What is the fundamental difference between hard mains supplied water and artificially supplied softened water?
A. Your mains fed hard water supply contains calcium. During the softening process, this calcium is removed and replaced with sodium. This sodium is sodium carbonate, not salt, which is sodium chloride. For every 100 parts per 1,000,000 of calcium removed 50 parts per 1,000,000 of sodium are added.
Q. DOES THAT MEAN I AM GETTING SODIUM IN MY WATER?
A. Yes it does but the quantity is so small to increase your sodium intake by 10 % you would need to drink at least 12 glasses of softened water per day. To really put this into perspective listed below are some common foods and their sodium content listed against a glass of London tap water that has been artificially softened.
QUANTITY IN MILLIGRAMS OF SODIUM
1 glass of softened water
1 glass of milk
1 slice of white bread
1 tablespoon of tomato ketchup
1oz of Cheddar cheese
1 8oz yoghurt
1 cup of tomato soup
3oz of ham
Q. How much sodium do I need per day ?
A. The recommended sodium intake for an adult is 2,000 milligrams per day. Most people consume in excess of 3,000 milligrams per day. A total absence of sodium in your diet would be fatal.