Was just for show I guess with PVC fittings he said would have to be changed to something different, forget what he said, copper or tubing of some sort. Beer will know that stuff far better than me, he'll get home at some point today, long flight for him from Wisconsin to VT. See what his take is or was.....
Maybe the metal would interfere with the micros. If you ever have to clean out the system with acids---Plastic can handle most, where as copper doesn't
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