Hi friends. I got some stains on stucco and am not sure if SH will do the job. What throws me off is the shape of the streaks. Almost like they are made of a roof tar runoff. What are your thoughts? Is it algae?
You have a ladder and a pump sprayer? Go find out what you’ll need 
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What if it doesn’t take it out? Any suggestions then? 
dperez gave some good advise. With things like that process of elimination is really what it comes down to. If its organic alkaline base product will work. If its mineral then acid base products will work and if its grease, well get a degreaser. I won’t say which product is the best cause that’s something everyone needs to really find out for themselves to see which works best. Download the F9 app and download the cookbook, look up page 60 and it shows a picture similar to yours and you may learn something.
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@speedybklyn Thank you for pointing in the right direction
