Tony Shelton
BS Detector, Esquire
Here is a car dealership we service. They thought our washing filters on the roof was causing this runoff, but we wash in the back of the building.
I tried to follow the trail and it appears to be coming from the gas pipes on the roof going to the HVAC units. There is a line of rust under them and a path of rust going to the drain.
How can I get this off?
I tried to follow the trail and it appears to be coming from the gas pipes on the roof going to the HVAC units. There is a line of rust under them and a path of rust going to the drain.
How can I get this off?