Sorry to ask but can someone elaborate on what hf is?
HF on everything? I'm assuming you want to avoid any windows with it. Is the HF to cut through the basic soap scum on everything? Any special precautions on equipment. Saying just use HF without details can be dangerous for people reading this thread.
Great job on the carwash Mike, especially the glass.
How long for a carwash that has not ever cleaned it, we have some of those here but when I give them the price, they decide to not clean it. My price is not that expensive.