Glass Diffuser Problems

[jesseoneill]

Howdy folks,

I bought this glass diffuser a few weeks back to attach to my Nutrafin CO2 system. The ladder that came with the system was too big in my little 10g tank, so I wanted something smaller. Anyway, the diffuser works well and it's fun to watch the little tiny bubbles come out of it, but a few times when I've gone to enjoy my tank I've noticed that the CO2 hose has come right off of the diffuser! Is there any way to keep the hose more securely connected? The best thing I've tried is holding both the hose and the diffuser with towels (to stop them from being so slippery) and pushing them together until I couldn't push them anymore. Any other suggestions?

Alternatively, if I can't get this to work, what is the process for running the CO2 hose into the input of my filter? Do I just shove the hose into the intake guard itself on the filter tube in the water, or is there something more complex than that?

Thanks for your help!

 

[Themuleous]

First off try putting the end of the tubing in some very hot water, that'll soften it up and you'll probably find you can push it further onto the diffuser. When it cools it'll tighten and 'should' hold it on more tightly.

If that doesn't work, I would think just pushing the tubing into the intake would be fine. Some people have it just below the intake so the bubble gets sucked in on its way past. But whichever way works best

Sam

 

[Dave Spencer]

You probably know this, but be careful. I snapped the stem off a diffuser before I ever even got to pass one single CO2 bubble through it.

Dave.

 

[jesseoneill]

Thanks for your advice, folks! Just in case anyone has the same question I did and comes across this thread, here's what I did:

1) Boil some water in the stove
2) Pour some water into a mug
3) Grip the tube with a dry rag/towel
4) Hold about 3cm of the tube in the hot water for approximately 10 seconds
5) Pick up the diffuser with a dry rag/towel
6) Pull the tube out of the hot water and carefully (but still with some force) push the diffuser up into it

The diffuser stem is much deeper in the tube than it ever has been, so hopefully it'll stay there. Thanks again!

 

[Themuleous]

You probably know this, but be careful. I snapped the stem off a diffuser before I ever even got to pass one single CO2 bubble through it.

Ditto! And with a glass u-bend