Running skimmer air line to outside house

[Cksnffr]

I might need to do this if my internal air has too much CO2. But I'm not sure how to do it. Here's my skimmer:

The air tube goes up to the silencer. Air is drawn in through the top of the silencer, directly past the thumb screw that regulates air flow. (I've got it choked down pretty well on mine.)

I could bypass the silencer altogether and just replace the current tube with a long one running outside. But then how do I dial down airflow? Can I just use some kind of ball valve?


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[atreis]

Yes, you can get ball valves for air lines (as parts for air pumps - bubble makers). You may also find that you don't need to dial it back so much due to the increased resistance from the longer run and the inevitable twists and turns.

Be sure and use silicone tubing - it's more expensive but is much less likely to kink.