4
Oct/091
Oct/091
How Powerful A Vacuum Do I Need To Reduce Pressure To 1 Torr In A 6″ Cube?
I have a sealed 6″ cube (air, not liquid) and I need to reduce pressure to 1 Torr. Does anyone have suggestions for specific vacuum pumps or recommendations on where I can find this info? Thanks.
3
Aug/091
Aug/091
What Kind Of Vacuum Do I Need For Aquarium?
I have an aquarium with sand substrate. I tried using my gravel vacuum on it but it didn’t suck up any of the debris. I held the vacuum a little above the sand jt like I am supposed to. The debris would go up the syphon a little then fall back down. I even tried getting closer to the sand and it did the same thing. Any ideas? Do i need a different kind of vacuum? I’ve heard of netting the sand. How do you do that?