I found soda water machines for home !

According to the article in the yesterday's Nikkei Newspaper, you can already make soda water from water in home with a soda maker !

The lowest price is 12,600yen. so,I feel it is a little expensive without shearing.
But cost performance is high. The maker's website says you get soda at 18 yen per 500cc.

I wonder what the taste is like.