Inlet is on top.
Just ran a test. Pumped the 150ish from MT to BK nicely. But the chiller was the huge victory!
From full rolling boil I started my timer. Flame out and recirculation started immediately. This was 7.75 gallons, started MT with 8, measure 1 quart dead space. So, 7.75 gallons at full boil, flame out, pump on, chill water wide open... 212° to 80° in 3 minutes! 70° in 5 min, 65° in 7 min, 60° in 9 min, and bottomed out at well temp, 55° in 14 min?
I had a little flaky gunk in there and it all ended up dead center of the BK.
I used the pump to dump it, and my little soldered copper elbows worked great. Drew it down to about a pint of dead space and left the gunk still in the center.
This system is going to rock!
Next upgrade is a 3 burner stand with Tejas high pressure burners. That ought to do me for years and years