I have installed 1/2 inch copper piping in my shop for painting only, I have 4- 6 foot drop downs right after the compressor with ball valves. The compressor is 7.5 hp 80 gallon 26 scfm at 175 psi, I ran 50 feet of copper around the ceiling from the last drop down to the drop down for painting. I have a regulator, Motor guard m-60 then a 1 gallon desiccant dryer before the hose outlet and still get pimples all over the clear which tells me I have a water problem. What would you guys suggest to add to the system to get dry air? I need something to happen because I can not continue to spray as the system operates, Thanks in advance for any help.