refrigerated air driers?

My aftercooler is between the compressor and the tank, very similar to these pics. I have a qt-54 and the output from the compressor is around 270 and after going through the cooler it's around 15-20 above room temp. After running 20 mins straight, I get very little water in the main tank. This "aftercooler" is a option on Quiney's higher end compressors.

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I think we saw the same u-tube video. I'm doing my piping with some 3/4" stuff I already had. Only had to buy the AN to pipe fittings on the cooler and the water trap. Using Sil-phos brazing rod for the joints. Way more work than it needs to be but I like making use of what I have. All the new lines will be 3/4" too because I got it for $5 a stick. $30 for 60'.

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