Affordable Compressor Water Filter

Here is my setup. I have the 40+ feet of black iron pipe going up and down the wall with a drip leg on on every other one. I also have the motoguard filter and regulator at the end.

I was still getting a little moisture, so I plumbed in a trans cooler, between the pump and the tank, with a drip leg on that. So the pump pumps the air, through the cooler and then it goes into the tank. The air temp drops significantly before hitting the tank. Now, I have no moisture by the last leg of the black pipe.