I'm an Asset Manager here in the Philippines, for C&I rooftop, I'm having a hard time cleaning panels near cooling towers, tried the vinegar solution, panel cleaner solution, seeking advice how to clean these type of panels. Below is the sample

Călin here. Born Romanian, educated in France, living in The Netherlands. Since 2020 I work in O&M and Technical Asset Management of Utility and C&I. This means that I contract cleaning, I recommend cleaning policy and I also study it's impact. My limitation is how little I understand about what it takes to clean. Types of soiling, adapted cleaning techniques and also the logistics of cleaning. I am here to learn to make better decisions about cleaning. Cheers