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post #1 of (permalink) Old 01-29-2013, 11:06 PM Thread Starter
Planted Tank Enthusiast
Join Date: Aug 2012
Location: Fremont, CA
Posts: 688
Help finishing Co2 reactor build

I started building a Rex-Griggs style CO2 reactor, but I need help with sealing the two air-line ports on the top..

Sorry for the mspaint picture, but I'm away on my laptop for the day, and I don't have a way to take pictures.

here's what I built with 2" PVC -

After gluing it all together, I drilled two holes in the top for the CO2 intake and for a "release valve" (per some forum post I remember reading here)..

Now, the tube doesn't seal in the hole perfectly, so how do I seal it up? I tried squeezing a mess of silicone around it, but it still leaked on me...

Do I need to start over and glue it from the inside?
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