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Old 12/08/2017, 11:22 AM   #9
Registered Member
Join Date: Oct 2016
Location: Gilbert, Az
Posts: 206
I built one from PVC almost 30 years ago. Simplest skimmer uses an airpump/airstone to provide the fractioning foam. PVC reducer on top to go from largest pvc to a smaller diameter. few inches of smaller diameter PVC into the reducer and then collection cup slid down over that small diam PVC to allow foam collection. You tune it by raising or lowering in the sump. if you have the airpump then this will only cost a few dollars.

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