Ok so I decided that my air stone wasn't doing a very good job at distributing my co2, since it would just float to the top in medium bubbles. Let me know what you think of my new idea. Just click on the video.
Ok, well I am sure that I can find replacement parts eventually, or craft my own pump. Thanks for the heads up though. Oh, how much time are we talking about. Like a couple of weeks, months, or a few years?
Well I don't have a bubble counter on this, but I did see a way of making one out of a check valve and a syringe that I might try. Since I am still trying to get this down I want to spend as little money as possible.
I would run the CO2 into the inlet of the powerhead instead of in that weak venturi. The goal is to chop up the CO2 bubbles into very tiny bubbles, so they don't float up nearly as fast. I've done this with several powerheads and none of them have shown any damage due to the CO2. The way you have it now is a big improvement, but a bigger improvement is running it through the powerhead.