This is another job where a dryer was heating but not drying the clothes. Again I found heavy lint and water build up in the vent line. This was a messy job. It took me over an hour to get this ventilation system cleaned properly. There are special rods that are made for dryer vent cleaning. I had to use several of them on this job. This vent system ran through the slab that the house sits on. There’s not an easy way to do it but take a look at some of what I pulled out of that vent. This doesn’t even show what my shop vac sucked out after I had broken the crud away from the walls. It is very important to keep your lint filter clean. It should be cleaned after every load.