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Old 10-06-2020, 07:42 PM   #17
Ken/Alabama
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Join Date: May 2010
Location: Alabama
Posts: 3,237
Default Re: Cooling system help needed

That cooling system is an open system therefore it can not build any pressure not even with a pressure cap. The overflow tube comes Right out of the top tank .Skip the water pump guy has an in-line 4 lb pressure relief that you place on the end of the overflow tube. Works great.
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