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846 posts

Ultimate Geek

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#268510 23-Mar-2020 13:16
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I have a water tank, which has a lid and will remain sealed for the majority of the time. 

 

I'd like to install an air line hose, to oxygenate the water.

 

The easy approach would be to run the airline hose from the top, through the lid. With keeping the water tank sealed, is there such a valve or device I could install on the side of the tank wall, which would allow me to run the air line hose through, while keeping the tank sealed?

 

 

 

any thoughts or advice would be tops. Thank you

 

 





The little things make the biggest difference.


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199 posts

Master Geek


  #2444471 23-Mar-2020 13:23
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What type of tank, please. And if the lid is sealed, do you plan on using some type of pressure relief valve to prevent it exploding?




846 posts

Ultimate Geek

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  #2444474 23-Mar-2020 13:25
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Plastic 20L water tank \ reservoir

 

The lid will be able to come off, it isn't sealed shut with anything, no build up of pressure.

 

 





The little things make the biggest difference.


 
 
 
 


740 posts

Ultimate Geek

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  #2444475 23-Mar-2020 13:25
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Is the water tank currently full?

199 posts

Master Geek


  #2444484 23-Mar-2020 13:31
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Just drill a hole the same size as your air tube and poke it through. If there is no differential pressure it will be fine




846 posts

Ultimate Geek

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  #2444504 23-Mar-2020 13:38
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traderstu:

 

Just drill a hole the same size as your air tube and poke it through. If there is no differential pressure it will be fine

 

 

 

 

You might just be right with that! 

 

How could I install a small pipe and then feed the air line hose through?





The little things make the biggest difference.


199 posts

Master Geek


  #2444600 23-Mar-2020 15:20
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I think you may be overthinking this. If all you need to do is get an air hose thru, don't over complicate things by installing a pipe as well. The only thing that I would suggest is that if you want a deluxe install, go to Para rubber and get a rubber grommet to suit your hose and fit that to the tank.


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Uber Geek

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  #2444712 23-Mar-2020 17:01
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traderstu:

 

I think you may be overthinking this. If all you need to do is get an air hose thru, don't over complicate things by installing a pipe as well. The only thing that I would suggest is that if you want a deluxe install, go to Para rubber and get a rubber grommet to suit your hose and fit that to the tank.

 

 

I would suggest for a super deluxe install that you use a cable gland. This will seal the hole in the lid and if you use the matching size for your hose it will grip the hose to stop it falling out.

 

You should probably join the hose to stiffer tubing once it is inside the drum because hose will curl - assuming you want the air to be released at a consistent depth.


 
 
 
 




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Ultimate Geek

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  #2444721 23-Mar-2020 17:12
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Thank you traderstu and elpenguino for those suggests. The setup needs to be somewhat professional, and deluxe so I will look into those mentioned products. 

 

 

 

 





The little things make the biggest difference.




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Ultimate Geek

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  #2444729 23-Mar-2020 17:30
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elpenguino:

 

traderstu:

 

I think you may be overthinking this. If all you need to do is get an air hose thru, don't over complicate things by installing a pipe as well. The only thing that I would suggest is that if you want a deluxe install, go to Para rubber and get a rubber grommet to suit your hose and fit that to the tank.

 

 

I would suggest for a super deluxe install that you use a cable gland. This will seal the hole in the lid and if you use the matching size for your hose it will grip the hose to stop it falling out.

 

You should probably join the hose to stiffer tubing once it is inside the drum because hose will curl - assuming you want the air to be released at a consistent depth.

 

 

 

 

Liking this cable gland!!! This is probably exactly what I'm after. 

 

 





The little things make the biggest difference.


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  #2444745 23-Mar-2020 17:46
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The common arrangement is to have stiff tube through the cable gland to the near bottom of the barrel, then use a hose diameter which snugly pushes over the tube and is fastened with a hose clamp of its' own.


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  #2444823 23-Mar-2020 19:19
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If its aquarium silicone airline, just a slightly smaller hole and stretch it thru and it will seal pretty well up. Gland will compress on it and make the inner diameter down to nothing before it has a grip.

 

 

 

Fancy would be a threaded bulkhead connection with barbs on it. Aliexpress and ebay have heaps in stainless but thats not gonna help a problem that you need to solve now.





Richard rich.ms

5751 posts

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  #2450074 30-Mar-2020 14:16
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Drill the hole in the top and it won't need to be water tight.

 

 





Mike

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