[Chrona]

Hey all, sorry if this question has been killed many times over, but I was wondering if you guys wait until the bubbles run out before preparing the solution, or get one ready at certain intervals (ie 2 weeks). My pH goes from 7.4 to about 6.8 with injection, so I was a little concerned about the sudden pH swing upwards when the injection stops, and the sudden swing downwards after the new solution kicks in. Thanks

 

[Chrona]

Thanks for the responses guys. My normal tap water kH is about 4.0, so I add a smidge of baking soda to get it to like 4.5 or 5. I think I read somewhere that the bubbles will die off very quickly, so I thought that may send a big jolt into the system, followed by another when the next solution kicks in, but I guess not. The problem I have now is I'm still on my first batch, so I have no clue how long it will last, since i have a pretty cold house, so I had to use almost 2 teaspoons of yeast to get thing's going. I'm not sure how it all will balance out, so it could be another 3 weeks or it could be another 3 days, lol.

 

[Chrona]

I was more concerned about the pH when the bottle runs out, and when the CO2 kicks in after I put in a new solution. I'm currently adding 1/4 teaspoon of baking soda, as recommended. The rig is just a soda bottle with an airstone that feeds into the intake of my HOB. I added 2 cups sugar, 2 teaspoons of yeast, 1/4 teaspoon baking soda and filled to 2 inches from the top with distilled water.