hi there,
a little bit of advice please, as part of our service predomiantely build cleaning 95%, we have to clean the windows, and when we have done the sparkle they look very good.
up until now we have used a standard detergent mix, that does fine, but i have now purchased GG4, and am using it ok,
some people on here have suggested problems with slip etc, and the addition of detergent to the GG4 mix.
any opinions either way
regards
martin