Had same trouble, was told I needed 25’ of steel/aluminum/copper tubing to cool air temp before going into water and oil filters. I looped 40’ of copper tubing and then went to filters. I already had the time release drain on tank. Now air is less then 100° when entering filter/separators and water can be removed. It took care of my issue. I still use an extra filter before my 25’ of painting hose and disposable filter at paint gun when painting as an extra precaution.