Re: Why not do both herbs AND zapper together??

To all : don't believe everything that parazapper says, he continues to claim things without providing any logical explanation or proof that this is true.

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No single frequency works all the time or for everything.
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Why do you say that ?

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The 30 kHz zapper was a good beginning but it became obsolete 15 years ago with the introduction of dual frequency zappers.
Generally, I would recommend at least 4 modes minimum or 20 frequencies minimum.
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You recommend this because you want to sell your devices, but you have still not provided one proof that using several specific frequencies manage to kill parasitic worms more efficiently than using only one frequency with a sharp square wave a 50% duty cycle and a positive offset (as recommended by Hulda Clark ) (which is not very efficient)