As a result of a posting about applying a liner to aluminum floors, I have been asked by several people about my comment of cleaning the bottom of the trailers. I live in the north east where road salts during the Winter and Spring months are prevelant. Anyone living in a snow belt or coastal area will be familiar with the effects of salt on most metals. We watch our vehicles rust from the bottom up and the inside out. Urine will seep throughout your trailer floor structure, through the smallest gaps just like water. Over time is will attack the metals it has reached under your floor, even though you may clean the floor surface. The combination of road salts and acids will play havoc on the undercarriage and cause corrosion on the the various metals. Washing this off is very simple and costs nothing, using the items you probably already own. Before you unhook your trailer from your last trip, or have it attached in anticiation of your next journey, park it close to where you can reach it with your water hose. Fasten the hose to your lawn sprayer, oscillating or fixed it doesn't matter, and place it under your truck behind the front wheels. Place two pieces of wood, one on each side, beside and parallel to the hose to protect it, where the wheels of the truck will run over the hose. Turn on the water and slowly drive the truck and trailer ahead until everything underneath is flushed off. You may have to make two or more passes, pushing the sprayer further under the truck each time to reach the entire floor areas. Now if someone were clever, they could adapt a soap dispenser like you use to wash your cars, onto the hose so you could then both wash and rinse the bottom of your rig. Hope this helps Gard |