AiredOut
+1y
Hes talking about compressed air dryer im sure. We made our own with an old fridge, with about 75 feet of 1/2 inch copper tubing run through it. Install the coil of copper tubing inside the fridge, one end exiting at the top, the other at the bottom. Leave space at the bottom to install a water trap on the outside of the fridge (water trap hooks to the bottom of the coil). Air from compressor runs into the top of the coil. Adjust temperature so the coil cools the air, condensing the water from the air which the water trap catches. I suggest that you also run an airline from near the exit of the water trap to the inlet of the coil (where the line from the compressor goes to the coil). In this line install a shut off valve. Open the valve to bypass the fridge if the line should happen to freeze (this happens sometimes), defrost the fridge then close the valve. If it freezes all the time, adjust the fridge warmer (ours freezes 2-3 times a year due changing weather). Im sure this isnt the best setup out there, but it was very inexpensive, and at the time we didnt have the capital to buy a dryer unit. Since then it has worked well enough we decided not to spend the money to buy a production unit.