In this video last week, I was just messing around to see what a Rotovac 360i, plus Ionized (alkaline) hot water from a modified Amtex Prowler (trade secret) can do. No pre-spray was used and I did not pre-scrub. The only thing I did was to pre-vacuum. Of course later, we finished the job by pre-spraying, scrub and then Rotovac. Not bad for water only results. Be the judge.
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