Pond Boss Forums INTRO Questions & Observations Fish Kill

I don't know the exact size of your pond, but going from the info that you have posted I think that a Kasco agitator in the 8400AF size range would fit your needs for times like this with your current bottom aeration diffuser system. I agree with Sue, what you have now is undersized for your pond. That's one of the downfalls of doing a DIY aeration system. Yes, they are cheaper, but you don't know if the system that you are putting together for your pond is adequate unless you do a LOT of calculating and research.

That's why the system packages are more expensive. There is a LOT of testing and design that goes into them before they ever hit the market, and those costs have to be recouped somehow or else the company won't be around very long.

CFM compresor output at various depths
Bubble size generated by the diffusers
How much water each diffuser will lift
Placement of the diffusers in relationship to each other determine how much they will lift. 3 diffusers placed a certain distance apart will lift more water than those 3 placed individually. How far? For a DIY guy, you have to have equipment to measure water flow to figure it out - buying a system it's already figured out.
Cabinet size
Cabinet cooling requirements
etc., etc., etc.