Canada
They can use salt or chlorine but most people choose salt
the people
Different water softeners use different grades of salt, so check with a water softener supplier. - Most non-electric, twin-cylinder water softeners for homes use block salt. - Most electric, single-cylinder water softeners for homes use tablet salt (also know as pebbles or pillows), although some use granular salt. - Most commercial water softeners use granular salt, although some very large ones have special brine tanks to take PDV (fine) salt. Julian Hobday of KindWater
Most of the salt you buy comes from salt mines but there is also sea salt which is evaporated out of the sea and it is more expensive. The most expensive salt comes from Leaso, a large island off the Danish mainland. It sells for $29 per kilo.
Most salt will work just be sure that what you use does not have YPS (http://en.wikipedia.org/wiki/Sodium_ferrocyanide) in it as it clogs the cell and they are costly to replace.
There are 2 provinces in Canada that do not touch salt water. These provinces in Canada are Saskatchewan and Alberta.
Salt Lake
It is the most salt for snacks because salt gives it a good taste the rest - others will edit this answer
Canada gets most of it's minerals out of the ground. Canada mines almost every mineral !This includes coal, gypsum, rock salt, potash, lead, nickel, iron, zinc, copper, silver, gold, radium, cadmium, uranium, platinum and diamonds.
Canada's most common resources are air and water.
Canada ranks 17th in the world as far as the use of Cannabis is concerned.