I was rather shocked to see the price of the refill packets for the nutrafin system, for 3 packets of activator and stabilizer £3.99! HOW MUCH!!! LOL
So, If you are skint like me, fill the cannister to the first level with sugar, then a pinch of baking powder(this is the stabilizer) and approx 1/4 tspoon of bakers yeast, £1.35 for 6 sachets. then top up with lukewarm water as described, same effect, but saving you money!!!
If you can get yourself some champagne brewers yeast, this continues the reaction for longer, but it is more expensive initially to purchase.

yep i have used this method in the past .....works great!

__________________
(\__/)
(='.'=)
(")_(")♥