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Old 12/15/2017, 01:16 PM   #16
blasterman789
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Join Date: Mar 2010
Posts: 361
Built a lot of DIY skimmers. Commercial models are over priced plastic.....but...commercial models have the optimum sizes down pact and this is their advantage. Their throat and reaction chamber sizes are designed to have the best efficiency.

You can make a skimmer as easily as using a 1 liter soda and a wooden air stone. The problem is moving it up and down, but this can be fixed by using a cleaning magnets to clamp it to the glass - in tank or sump - doesn't matter. What I've found is the 'throat' size of a skimmer has to be sized to airflow going through it. Too big and and 'dirty foam' won't stack, and too tight you just get wet foam.

A DIY down draft would be something I would try to build if I had the time. No reason you have to use round tubes either.


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