POOP or POPO – does it really matter?

The short answer is NO, it really doesn’t matter whether you turn on and turn off your torch using Propane – Oxygen – Oxygen – Propane or Propane – Oxygen – Propane – Oxygen, as long as you do it the same way all the time.

Some people will undoubtedly be horrified by this — but honestly, it really doesn’t matter, as long as both the propane and oxygen are turned off at the end of the session. I want you to just get into a habit of doing it the same way all the time, hence the mnemonic phrase POOP or POPO. And because of the scatological reference of the mnemonic it can easily be remembered (not to mention bringing a smile and chuckle when you are teaching it to a new student).

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