Hydrophyllic...I think

I was cleaning the exterior of a large building and I noticed that the water did not rinse off in sheets, as I am used too, and as a result, was depressingly difficult to clean using my backpack and pencil jetted setup.

Why did the pencil jets leave slight spotting on this kind of glass (I tested the water, it was 000)?

I will be buying some fan jets this afternoon, courtesy of WCR!


The spotting is the result of not being able to thoroughly rinse the dirty water off the glass. Fan jets will take care of the issue for you.