Howdy all. My largest account (hospital who I wash for weekly) has asked us to take a look at their hood system. Well, the hood is the easy part. The vent leading to the fan is a 70 foot vertical run to the rooftop, then a 20 foot 90 dergree horizontal to the fan area. Heavy, OLD grease, severe puddling in some areas. going to have a huge problem with getting equipment up to top, may have to go mobile. Any thoughts?