If you are dialysis patient you should drink enough water but the quality of that water should be maintain. Dialysis patient health is very sensitive. They have to drink proper quantity of water according to doctor advice. And that water should be clean and pure.
Too much calcium or magnesium in water can cause
nausea, vomiting, muscle weakness, severe headaches, skin flushing and low or high blood pressure. Metals present in water can cause a variety of symptoms including liver damage, inflammation of the pancreas,
destruction of red blood cells, seizures, brain damage and even death. The chemicals present in water destroy red blood cells if they enter the blood stream. Bacteria and endotoxin can cause infections and fever.
To overcome this problem you should test your water by water testing laboratory and according to that design proper plant in home to maintain the proper level of minerals, metals and chemicals.