Help me understand Heloc Refinance Repeat

[Eric Malone]

Please explain how this works. Im looking to take out a heloc on my first first property and use it as a down payment on a rental property. What i dont understand and need help breaking down is im told to refinance the new rental property which would then pay off my heloc. Then i would just repeat.  How does this work? and explain how refinancing would pay back my heloc.