Originally posted by Andy16
So make sure the bottle is above the tank? Im thinking abouti making a box to put it in so if it does explode it wont get all over.
Better to plan for it not exploding that to plan on it doing so.
It is fine to have the bottle below the tank while it is making gas well, the bottle is ugly and there is room to hide it below the tank. But, if you open the bottle, the loss of pressure will suck water up the airline from the tank (actually it seem to be water expanding as it absorbs the gas, but I'm not sure of the mechanism -- whatever, it draws water up the line.). Once that water gets above the edge of the tank, gravity makes it flow down the line all over the floor. So, just don't do that.
If you open the bottle, put it on top of the tank first. Easy.
That isn't exploding, it just runs yeasty sugar water from the generator, or even the bubble counter, up the line to the tank if you aren't careful. A check valve ought to hold it. I don't know why mine failed. I don't trust check valves that are plastic that have had CO2 and water in them now.
The reactor could explode, I've read about that in the old Krib archives, but never in recent times as far as I know. More often some pet or sibling or baby knocks it over. Nasty goo travels up the line into the tank. The soda bottles are unstable so tie it to something or use a square juice type bottle.
If the airstone has fouled from not using a bubble counter, you'll probably notice that reduced rate before much pressure would build up. If you had a bubble counter that fouling wont happen.
f you have a bubble counter you'd notice if it were filled with yeasty goo. The bubble counter liquid would have traveled into the tank, but it is pretty clean water, not dangerous. It ain't fool proof but it buys you time to notice the problem.
So, if you're going to build anything, build a bubble counter, and make sure the line is long enough so that you can easily move the generator and the bubble counter to the top of the tank together, be sure the lines are long enough.