Pond Boss Forums AERATION Systems questions Opinions on this set-up please

Can't view them. Google asks me for a user name and password.

Here's the deal. To do it properly, and to prevent winterkill, you need two things.

1) You need to calculate the gallons of water in the pond.
2) You need calculate the numbers of diffusers needed and volume of air needed to bring at least 125% of that water volume to the surface every 24 hrs. 200% is much better. If the pond is 20' deep, you need that volume of air when the compressor has 11 psi of backpressure. (10% for a fudge factor)

You should be able to find the specs on the diffusers in regards to operating pressure/volume and amount of water that it will move at "X" depth. You have to check the pressure/volume curve charts on the compressor to make sure it will generate the amount of air you need at 11 psi pressure.

If one diffuser will do that, then you can get away with one. You need to move it to 4'-5' below the pond water surface for the winter (diffuser set at 4'-5' depth), then move it to the deepest spot in the pond for the summer. You cannot leave it in the deepest spot for the winter. If one diffuser can't do that, then you can't get away with just one diffuser.