To be absolutely brutal and honest with you, nobody cares about I look forward to hearing from you.. The practical reason is that it's one of the various standard and conventionally polite ways to end the body of the letter. It's just a standard exit.
1 In some cases, liver failure causes this taste to occur. 2  Gastroesophogal reflux disease can cause the salty taste (even when no pain is present). 3  Some medicines can make everything taste odd. for example the drug enalapril, which is a drug used to prevent heart failure.
More often a salty taste in drinking water is due to high levels of sodium, magnesium, or potassium, which are minerals that occur naturally in water. Depending on the type of tastes and odors that you are experiencing in your water, determines the action you need to take.