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DIY Yeast method materials...
Sounds like it would work to me...alchy is lighter than water, right, so if you
removed the water above the yeast/sugar crud at the bottom, I hink you would get most of the alchohol. If you then add more water, this would be diluting the alchohol levels, kind of like when you dilute nitrates in a tank.... I could be completely wrong though. Rich Da' Fishboy wrote: LOL I have never collapsed a 2 liter pop bottle with the venturi of a powerhead. I would rather have the bubble go through the rotor blades of the powerhead as it dices up the bubbles much better. I use a penguin 600R and route the airline tubing into the end of the sponge filter. This works great for the 75Gal tank I have right now. I have also used the intake of an aquaclear mini - 200 but the sound of the bubbles being diced is more than I can handle. If you have a tank over 50 gallons I would recommend using a 1 gal apple juice plastic bottle. The plastic is thick and the cap has a good seal to it. The amount of yeast is not very important to the mixture as the amount of sugar and water is. The amount of sugar can be used as a control over the multiplication of the yeast spores. The wall that you are fighting against is when the water becomes toxic with alcohol. Therefore I add about a 1 cup sugar to start with and then feed the mixture each week a new 1/2 cup of sugar. I am on week 5-6 and the mixture is still going but reduced in production. My question would be if one removed the water mixture and retained the yeast spore could one refill the mixture with "clean" water and fresh sugar to restart it? Would by retaining only the most alcohol resistant spores would one gain production over the long term? "Jason" wrote in message .com... Yes but I am looking for a blow valve as a precaution against the possibility of the airstone getting clogged and causing my 2 liter bottle to explode (I have seen pictures and read postings on this happening.) Since I have read interest from people I will describe my setup, and I will post a picture of it later (although its pretty simple) 1) Get 2 liter bottle (I got a $.49 seltzer water bottle since its clear) 2) Drilled 1/4 hole in top of cap and silicon sealed tubing inside of it 3) Since my co2 reactor will be beneath my tank, I have installed a check-valve on the line to prevent reverse-siphoning 4) Recipe I put in bottle is 6 cups water (~1.5 liters) 1 cup sugar, 1/4 tspn baking soda, and 1 tspn of yeast (NOT the instant yeast, but bakers yeast) (I might add that the baking soda DOES help in the co2 production) I run the airstone end of the tube down to the bottom of my aquariium and anchor it there with one of my rocks. For those of you who suggest running the co2 outtake to a powerhead... DONT DO IT... this is for the simple fact that even a very small powerhead will pull more air that the co2 reactor can provide, this results in a very good probability that your 2 liter bottle will collapse from pressure. (Thus sucking that nasty concoction into your tank and probably killing some fish/plants) It is best to put the the airstone underneath a flow of water so it circulates within the tank and has more time to diffuse. I am making a new co2 reactor that uses an empty wine jug (glass) and has a bit more solid structure.... This is the reason I am looking for a blow valve is so I can make sure that too much pressure doesn't build... I might just use a rubber stopper (with a copper tube coming out of it... easily aquired at a scientific supply type store) and a check valve... but the benefit would be a bigger water/sugar/yeast concoction that produces more co2 "Trygve Lillefosse" wrote in message ... So here is my question: Does anyone know of a good or common place to get a blow valve? (I.e. a valve that will discharge within a certain PSI range) I would like to make my DIY system fault tolerant, but I am just stumped on where to get the blow valve... any ideas? Thanks! The pressure will not be able to build up since it will go out the airstone. Would'nt be to concerned. SEE YA !!! Malawi, The Fisher King - Ruler Of The World Conquering the world for YOU since 1972. |
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