My tap water has a high sodium content. The public water works removes enough salt for the water to meet health standards, but it still tastes bad. On the bright side, I don’t have to add a pinch of salt to many recipes that require water.
Buying purified water in reusable 20 liter containers from a delivery service is one way to reduce the amount of plastic. This is the choice we have made ourselves. We reuse desposible plastic bottles for school lunches. I have been pleasantly surprised at how dependable the kids are at bringing the bottles home and rinsing them out for the next day. If they could be counted on to always bring their bottle home, I would consider getting them one of these stainless steel bottles.
“Stainless steel Klean Kanteens outlast their plastic counterparts and drinking water from a stainless steel Klean Kanteen tastes clean and odor free, unlike drinking from plastic which often makes water smell and taste undesirable.”
Reverse osmosis filters can take municipal water that last step from safe to palatable. The most practical ones divert filtered water to a special tap and allow you to use unfiltered water for washing and other purposes. The expense of these systems will be partly dependant upon the amount of solids in the unfiltered water because over time replacement filters will be a bigger expense than the initial installation.