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Old 04/25/2006, 11:19 AM   #3
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Join Date: Jan 2004
Location: Winterset, IA 50273
Posts: 2,299
Classic carlson surge device. A 29 gallon drilled for a 1.5" bulkhead. An upside down U tube in the 29 to create and break the siphon. From the sump to the tank. Filled with a rio 3100 and fires every 2 or 3 minutes.

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