Ended up having a little extra time today and just ran a water test... not really impressed. My tap water just read 40*, should make for a pretty easy chill you would think. First I tried running boiling water through with the pump. Coming out was 130*+, slowing it down to just a trickle I could get it down to 70. Just using gravity wide open it was about 90, and closing the valve halfway brought it down to the 70's. Not very impressive given the ground water temp. I'm now convinced this is indeed not convoluted inside as advertised. My homemade garden hose cfc beats the pants off this, and I'm not really that happy with it either. It works well in the winter, but the summer months my water gets to about 65 and it has trouble with that. I'm also getting tired of the burnt rubber smell that fills my brewery from the hose while recirculating. I would really like the option of saving the waste water to the hlt for another batch, but prefer my beer without that first wort tire addition.
I'm sure someone will chime in and tell me I need to get a big plate chiller like a therminator or comparable, but I don't really want the hassle of keeping them clean (I've got more important things to do than flush, back-flush, bake in oven, flush, back-flush, repeat when you keep finding crud coming out).
Anyone have experience with the copper ones that can attest to their experiences? Anyone else try their SS ones yet and have different results? I'm thinking I'm going to be calling Midwest tomorrow.