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Re: Nitrogen testing?
Posted to HVAC Forum on 4/22/2021 1 Reply

I use 125-150psi for testing. Set it, close the valve, walk away for 30 mins and come back. Gauge drops , you've got a leak. Start spraying soapy water around all connections and potential leak points. You'll find your leak. Gauge does not drop you don't have ... Login to read more.

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