I believe you have to start with an initial deep-cleaning before using
it. It's purpose is to prevent dirt/scum/etc. from building up - not
to eliminate an already dirty shower. Kind of like the Roomba's - for
foot-clean floors in between the occasional deep cleanings.

dpb wrote:
tomkanpa wrote:
I know this is a better question for rec.home.cleaning, but that group
isn't too active as of late.

Can anyone say how this performs or doesn't perform??

Coincidentally, a local TV news (????) show does a "Does It Work?"
segment one night a week and did a test of one of these products a
couple of weeks ago. Two (or was it three?) different folks took it
and used it a week and the assessment was universal--it didn't work at
all....mold, grime, uggh!, etc., all were rampant at the end of the
test period.