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Pond Aeration - enough aeration for swimming pond?
#514342 11/26/19 02:32 AM
Joined: Apr 2019
Posts: 5
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Joined: Apr 2019
Posts: 5
Hello Guys,

Have an established pond which is approx 1ha with 2/3s of the pond at around 8.5 feed deep.

I am aerating the pond with a 140L/min air pump running through 4 diffusers at the deeper parts of the pond. The far end just slowly gets shallower and shallower near the end as per the lilys.

The main direction of the wind is over the pond wall down towards the bottom left of the photo and turns the pond over from the deep end to the shallow end often.

Over the next year I am going to be putting a 7m wharf out into the deeper part and would really like to turn it into a swimming pond.

Questions really are is it possible to clean a pond via aeration to achieve a swimming pond and what other steps should be taken to help speed up this process?

I have added a photos to show the location of the aeration sites etc.

Attached Files
pond.jpg (1.98 MB, 93 downloads)
Last edited by blackhawk; 11/26/19 02:33 AM.
Re: Pond Aeration - enough aeration for swimming pond?
blackhawk #514355 11/26/19 11:53 AM
Joined: Jun 2016
Posts: 1,918
Likes: 25
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Joined: Jun 2016
Posts: 1,918
Likes: 25
For those of us on the old-school measuring system...

1 ha = 2.5 acres,

140 l/min = 5 CFM

I would say, off the cuff without all the specs on your system, that you have a decent sized aeration system for your pond if fish habitat was the main concern. It might be too small if you see summer water temps above 85 -90 degrees F (30-32 degress C). It that case you would want to only run at night and I bet you would need more diffusers and more airflow.

But, you are talking about a swimming pond and that is a whole different animal...Water temp is not as important and aethetics becomes top priority. Any dissolved oxygen you can get to the bottom will help with the nasty muck that accumulates down there. Too much aeration and you can stir up the water and cause it to be muddy looking which deters swimming depending on what you think a good swimming hole looks like.

Do you have fish in it (if so, what kind)?

Are they important to you?

Can fish get into pond naturally (from upstream from other ponds)?

What is the Secchi disk reading for clarity?

What, exactly, is not so conducive to swimming in it now?

It looks beautiful, by the way! I love it, and the scenery too!

Fish on!,

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