Pressure Testing After Soldering ? - Plumbing - Contractor Talk

Pressure Testing After Soldering ?

 
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Old 09-02-2019, 10:11 PM   #1
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Pressure Testing After Soldering ?


Recently,we took on the task of remove a tanked w/h and installing a tankless water heater for a client. The job entailed a minor modification of the piping (cutting the supply lines down about 24" ea).

The fittings were in a wall, and not much clearance. Anyways, we soldered and, discovered the hard way, that a couple of joints did not hold completely. We did manage to fix the leaks. But, it sure would have been nice to find them before opening the lines.

So, my question is, should we have pressurized the system before opening the lines? There was still water down-stream of the unit, but... What is the proper procedure to take on before opening the system up ?
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