|  |  | | 
March 8th, 2009
|
| | Fish Keeper
| I'll sleep on it.
Quote:
Originally Posted by shadowavenger  generally yes, but you are just increasing the speed in which the air is being driven though the pipe, not the volume of air going through it. What pinkfloydpuffer needs is a more powerful force of air to overcome the pressures of the water.
The power rule is P=I*V (Power = Current * Voltage) or in pneumatics (air force = volume of air * velocity of the air)
you can have a low velocity/high volume through the pipe proportional to the amount of air it will allow, or you can have high velocity/low volume also proportional. in order to get enough air pressure to the bubble stone to overcome the water pressure, the overall air force or power has to be increased. a higher velocity may overcome the water pressure but the amount of air being pumped to the bubble stone would be dismal. | I will sleep on it . Good talking to you. | 
| | |
March 8th, 2009
|
| | Fish Keeper
| Quote:
Originally Posted by pinkfloydpuffer Ok, so, I was thinking... if a gang valve can let one pump power multiple devices, could a gang valve reversed let many pumps power one device?
So, connect one pump to each of the valve outlets, and connect the one airstone or whatever onto the part where the airpump usually connects? If this would work it could help me alot, as my Tetra Whisper air pump, which is the largest size they make, isn't strong enough to power the flexible bubblewand in my very deep 80g tank. | This goes back long time when i tried to connect two/three air pump as you described (couldnt afford new pumps as i needed when I was a kid) to come to conclusion that unless pumps are creating equal pressure (impossible task to achieve with our available tools)), it wont work. I have learned air will go thru where the least resistance is. W/ your bubblewand in 80G, probably more air will be lost thru the weakest air pump causing burden on the pump/pumps.
What is the model # on the TetraTec Air Pump and height of tank? I believe TetraTec Deep Water, DW96-2 or Rena 400 should be able to drive the wand. Look into piston pump, dont know if still avail. | |
| | |
March 8th, 2009
|
| | Fish Addict
| it would probably have to be impeller driven since a standard air pump uses a drum type pump which is very inefficient. An impeller would be more like a super charger forcing air through the system. | |
| | |
March 8th, 2009
|
| | Fish Keeper
| Quote:
Originally Posted by shadowavenger it would probably have to be impeller driven since a standard air pump uses a drum type pump which is very inefficient. An impeller would be more like a super charger forcing air through the system. | Like a fan. Most LFS would use such compressor to drive all the tanks. I would doubt if small one is avail to drive one or two tanks. There are also piston type pump by Danner, at least used to be, which will def drive bubblewand. | |
| | |
March 10th, 2009
|
| | Fish Addict
| essentially the same effect as putting 2 batteries in a parallel configuration with one being weaker than the other. The stronger one would be sourcing current to the weaker battery and less power would be available to the rest of the circuit. | |
| | |
March 10th, 2009
|
| | Fish Keeper
| Quote:
Originally Posted by shadowavenger essentially the same effect as putting 2 batteries in a parallel configuration with one being weaker than the other. The stronger one would be sourcing current to the weaker battery and less power would be available to the rest of the circuit. | Good analogy! | |
| | |
March 10th, 2009
|
| | Fish Helper
| face the facts, you must create a higher pressure at the bubble wand than what the water is at that depth. volume, does nothing without presure. I would google for higher pressure aquarium air pumps
try this http://www.aquariumguys.com/deep-water-air.html
Last edited by Toxic; March 10th, 2009 at 11:22 PM.
| |
| | |
March 12th, 2009
|
| | Fish Lore Newbie
| The one thing that hasn't been mentioned yet is that using a gang valve backwards might be problematic, since many gang valves incorporate "anti-siphons", which are the same as check valves... essentially, they won't allow air (or water) to flow in the opposite direction. 
A bigger pump is your only solution. | |
| | |
March 12th, 2009
|
| | Fish Master
| I've pretty much given up on that for now... I've just added a regular small airstone and submerged it only about 6" deep so that there's not too much pressure. Doesn't look as nice, and there's not as much movement, but it functions. Oh well.... | |
| | |
March 12th, 2009
|
| | Fish Addict
| do the bubbles really just stop coming out if you set the stone all the way to the bottom? I would think that would take a couple dozen feet and hundreds of pounds of pressure to completely choke off the air. | |
| | |
April 9th, 2009
|
| | Fish Bum
| I took about 3 gang valves once n have about 12 tubes. My friends blew in 9 of the tubes wich made a huge bubble inwich evryone got wet o_O | |
| | | | |
Similar Aquarium Fish Forum Threads 
