legallyflying
Well-Known Member
sorry guys, got busy this weekend (it was sunny this weekend which doesn't happen much here) so no air stone test. I WILL be doing it this evening though.
Wish I had a fish tank to take a picture of the different bubbles. Also, I really wanted to geek out and measure the airflow but the only way I could think of to do this was to bubble air into an inverted container filled with water, or fill up something like a balloon and then measure the displacement by dunking it in a graduated bucket. Then again, I was stoned when I was thinking of all this shit and I don't get high that much these days so I'll probably stick to the game plan I was even scratching out statistics and trying to decide if a one tailed or two tailed ANOVA test would be appropriate to determine if the differences in the DO results were statistically different from each other cause I wanted to generate a P value for each stone based on the average DO rates. The phone rang, and it snapped me out of it so I just went and played battlefield 2.
I do have this issue though.....
I'm using a 120l/m pump and a 12 outlet manifold. Here is the deal though... airflow to each stone will differ based on the back pressure and the fact that I am using a non-pressure regulated manifold. Ergo.. If the micropore stone is resisting airflow..then that airflow will go to another stone. If I closed all the ports and tested one stone at a time, I would be pushing such a massive amount of air through the stones that DO rates would be at their maximum based on the temp of water and its physical ability to hold O.
Wish I had a fish tank to take a picture of the different bubbles. Also, I really wanted to geek out and measure the airflow but the only way I could think of to do this was to bubble air into an inverted container filled with water, or fill up something like a balloon and then measure the displacement by dunking it in a graduated bucket. Then again, I was stoned when I was thinking of all this shit and I don't get high that much these days so I'll probably stick to the game plan I was even scratching out statistics and trying to decide if a one tailed or two tailed ANOVA test would be appropriate to determine if the differences in the DO results were statistically different from each other cause I wanted to generate a P value for each stone based on the average DO rates. The phone rang, and it snapped me out of it so I just went and played battlefield 2.
I do have this issue though.....
I'm using a 120l/m pump and a 12 outlet manifold. Here is the deal though... airflow to each stone will differ based on the back pressure and the fact that I am using a non-pressure regulated manifold. Ergo.. If the micropore stone is resisting airflow..then that airflow will go to another stone. If I closed all the ports and tested one stone at a time, I would be pushing such a massive amount of air through the stones that DO rates would be at their maximum based on the temp of water and its physical ability to hold O.