04-19-2014, 06:32 PM
The Dry Ice seems to have the lowest initial investment cost of all options to get the total cost of ownership down the quickest. It gets a bit less tedious if you have a second cylinder, and refill two (or more) at the same time.
I'm seeing Dry Ice for $1.19/lb, starting with 3.5 lbs one could fill two cylinders with a bit more than a normal purchased refill (about 450-475 grams vs 410). That's about $1.97/fill including tax.
With Dry Ice, you need a good scale that can weigh grams for filling, and it's also good as a way to check how much is left in the cylinder that's in use to predict when the next fill will be needed, and maybe buy the Dry Ice when it's convenient a little before it runs out, and waste a few grams CO2 to fill it a bit early.
Our family has been averaging about 3 weeks per cylinder, so with two cylinders that's a refill session every 6 weeks
Costco has had the SodaStream Source Metal version on sale for $80 recently, it's a special bundle that includes two of the 1 liter bottles, it's a reasonable cost way to get an extra CO2 cartridge, two extra bottles, and have a spare machine as a backup.
I'm seeing Dry Ice for $1.19/lb, starting with 3.5 lbs one could fill two cylinders with a bit more than a normal purchased refill (about 450-475 grams vs 410). That's about $1.97/fill including tax.
With Dry Ice, you need a good scale that can weigh grams for filling, and it's also good as a way to check how much is left in the cylinder that's in use to predict when the next fill will be needed, and maybe buy the Dry Ice when it's convenient a little before it runs out, and waste a few grams CO2 to fill it a bit early.
Our family has been averaging about 3 weeks per cylinder, so with two cylinders that's a refill session every 6 weeks
Costco has had the SodaStream Source Metal version on sale for $80 recently, it's a special bundle that includes two of the 1 liter bottles, it's a reasonable cost way to get an extra CO2 cartridge, two extra bottles, and have a spare machine as a backup.