when tfr is used & then brushed/rinsed off, does it leave a better surface than if it wern't used. what i mean is, ok, it gets the green stuff off but does it leave the glass/pvc shinier/looking newer than say, if you had just scrubbed it realy well with a brush then rinsed as normal with pure water having used no tfr?
Or, are the results the same but tfr just makes it easier & quicker?
tony