Ok so how do these two statements work? Who is right or wrong here and is there a right or wrong when it comes to D.O. on the surface?? Not picking what so ever just asking!! Thanks,
High Flyer Said,
Sean,
This type of aerator uses a propeller, not a fan to lift some amount of water and toss it through the air to add O2.
Surface aeration is used to add O2 to the water. While it does pull some lower water up, its main job is to add O2. Fountains, are the least efficient. And bottom aeration is used primarily for mixing the water column (braking a thermal-cline) and off-gassing dead bottom water.
So the surface aerator was used to add O2.
And fountains are pretty. While they do mix a little and do add O2, they are the least efficient/ most expensive way to add O2.
So remember, they all do different job for your ponds. Use the system that will match your goals.
Brian
And then Hatrackr said:
From what I know about aeration the top of the water column does not need to be aerated. There is already enough oxygen in the top of the water column from that water mixing with the atmosphere. You would need to draw water from near the bottom of the pond where the oxygen levels are lower and circulate it to the surface to increase the oxygen in the entire water column. As far as cooling the water I think it would actually increase the temp by mixing the pond, your increasing the amount of water contacting the warm air. That is why a lot of people only run their bottom diffusers at night.
So yeah where do we do from here??
I also been told (Not sure if it's true or not) but when you aerate the surface you need to get your water at least 2 feet high in order for it do really get any good D.O. back into it? Is that true or no?
RC
