Okay, so I did my first Tiger Stripe removal today. Since I live in Canada, my local supplier had Gutter Zap.
The videos for this product looked like it was apply and wipe the stripes off. I followed the directions, and found that I had to scrub really hard. I have no problem with scrubbing, but that is not in the description.
I feel like I need to increase the dilution maybe???
Or maybe I did not give it enough dwell time. But, it seemed to take a lot more time then the example vids, and a lot of scrubbing.
You have to pump spray on with about a 30% gzap 70% water mix, brush, rinse before it dries. Temps need to be over 60 degrees. Much easier to not offer the service.
I am starting off but already thinking good about this, I was a window cleaner first but ready thinking about limiting mop & squeegee work as much as I can.
Problem is, where I live (Toronto area) the vast majority of houses are brick. So, if they hire a pressure washer it is to clean the eaves. And, the public does not understand the difference between dirt, mildew or tiger stripes. So if I show up at a job and leave tiger stripes, the client feels like their eaves are dirty.
I would prefer to price in the gutter whitening and just get it done to have a happy client.
I would love to hear more about your sidewalk cleaning at apartments. How do you approach to quote? Are you removing gum as well? Any more info would be appreciated!