I just got a steelhead pump (http://goo.gl/St9gO8) and am trying to figure out what fittings I need to integrate it into my system. Everything is 1/2" in my circuit except for my counterflow chiller which I made using 3/8" OD copper tubing. Since I have to pump from the kettle into the chiller, can I put a 1/2" NPT -> 3/8" barb on the outlet 1/2" ball valve on my steelhead?
I've read much about restricting the flow going INTO the pump, but I haven't heard much about the outlet side. Thoughts?