Hi @ryman,

You're right! I couldn't find any members who have posted about this, but I'm going to ask @jamienolson, who is the moderator for the Eye, Ear, Nose & Throat group if she has any insight?

In the meantime, here are a few points to consider, which I summarized while researching online;

1) If your tap water has a salty aftertaste, it is likely caused by either a high concentration of chloride ions and/or sulfates in your water supply, possibly due to industrial waste, irrigation drainage, or seawater entering local reservoirs.
Sulfates may occur naturally in soil and rocks.
2) Drinking water and cooking water should not go through a water softener, as softeners uses salt to wash out the ion exchange chamber.
3) Very often, major dental work, and/or certain medications may cause taste disorders.

Mayo Clinic has a lot of information on taste disorders and alterations; you can view a number of the links, here: http://mayocl.in/2nS9fn4

I hope this helps.