Air Stone Placement for a Sponge Filter

[John Collins]

Looking for some thoughts and feedback. I don't like the way the course sponges of aquarium coop sponge filters leak air. So I tried this. It's easy to disconnect the filter from the airline for cleaning (just lift it out). The lift tube is no narrower than the open area within the sponge filter. I'm sure it's still getting some lift, my question is, is it enough to get enough flow to do any good?

[Shadow]

So you need to take the sponge filter apart and on the inside there is a small circular spot to attach the airstone via a small piece of air tube. Then you hook the air line to the top there where you have the air stone lying currently. Here are some pics...will look for a video for you. 

On 8/12/2023 at 6:04 PM, John Collins said:

Looking for some thoughts and feedback. I don't like the way the course sponges of aquarium coop sponge filters leak air. So I tried this. It's easy to disconnect the filter from the airline for cleaning (just lift it out). The lift tube is no narrower than the open area within the sponge filter. I'm sure it's still getting some lift, my question is, is it enough to get enough flow to do any good?

 

[John Collins]

On 8/12/2023 at 6:15 PM, Shadow said:

So you need to take the sponge filter apart and on the inside there is a small circular spot to attach the airstone via a small piece of air tube. Then you hook the air line to the top there where you have the air stone lying currently. Here are some pics...will look for a video for you. 

 

That’s how I had it, but I didn’t like that despite careful placement of the air stone and the filter, bubbles escaped trough the sponge. So I’m trying this. I think it should work something like this: https://www.etsy.com/listing/1289933237/sponge-filter-turbocharger-unleash?click_key=abbfc105164ad2e9cb83f4b9b5dda9b11388f917%3A1289933237&click_sum=4788cc43&ref=user_profile&sts=1

[Shadow]

On 8/12/2023 at 6:44 PM, John Collins said:

That’s how I had it, but I didn’t like that despite careful placement of the air stone and the filter, bubbles escaped trough the sponge. So I’m trying this. I think it should work something like this: https://www.etsy.com/listing/1289933237/sponge-filter-turbocharger-unleash?click_key=abbfc105164ad2e9cb83f4b9b5dda9b11388f917%3A1289933237&click_sum=4788cc43&ref=user_profile&sts=1

Maybe just go with that brand instead of doing it that way...the sponge will not do what its intended to do I don't think with it just laying on top like that. I could be wrong, but it shouldn't work that way properly. 

[John Collins]

On 8/12/2023 at 6:47 PM, Shadow said:

Maybe just go with that brand instead of doing it that way...the sponge will not do what its intended to do I don't think with it just laying on top like that. I could be wrong, but it shouldn't work that way properly. 

Thanks!

[lefty o]

it should still draw water up through it the way you have it.