DIY CO2: resupplying sugar

[lake_tuna]

Hey dudes and gals,

I have a DIY CO2 setup, and I need to add more sugar. Do you guys dump the old content in the bottle (2L reactor) and add new yeast and sugar or just add sugar to the mixture already in the bottle? Does the yeast in the bottle go bad? I'm thinking I should just add more sugar in there.. Let me know. Thanks!

 

[Crepe]

I dump all except a tiny bit of the old solution and then mix up another batch and fill it up. The solution you kept from the old mix will help get the system started up earlier.