Carpet cleaner to be used in rug scrubbing machine ??

i saw a post of a solution using frebreze and something else to make a rug scrubbing solution that I can use in my machine...I can't find it again...I believe I saw it from DIY...can you please help?? I have dogs so it has to be safe for them and My grandson of 8 months who loves to be on the floor to play
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