This is really an impressive build and the detail you have provided here and on your build site is top notch. This is my favorite of the current build threads right now.
I'm still trying to figure out one thing about your plumbing:
Say all valves are closed and none of the fermenters is receiving glycol and the main glycol line continues to circulate. What keeps glycol from entering the hot side return from the fermenters and circulating through the fermenter in reverse? I'm sure it is obvious, but I can't quite figure that one out.
I copied a photo from your website and placed an arrow at the spot I'm wondering about.
Another thing that someone else asked about was the use of individual pumps for each fermenter. If someone were to use a simple STC-1000 to turn pumps on and off, there would be no need for a solenoid valve...or would you just wind up with a siphon? Sometimes my razor sharp mind just does not comprehend.
I'm still trying to figure out one thing about your plumbing:
Say all valves are closed and none of the fermenters is receiving glycol and the main glycol line continues to circulate. What keeps glycol from entering the hot side return from the fermenters and circulating through the fermenter in reverse? I'm sure it is obvious, but I can't quite figure that one out.
I copied a photo from your website and placed an arrow at the spot I'm wondering about.
Another thing that someone else asked about was the use of individual pumps for each fermenter. If someone were to use a simple STC-1000 to turn pumps on and off, there would be no need for a solenoid valve...or would you just wind up with a siphon? Sometimes my razor sharp mind just does not comprehend.