Getting antifreeze into the hot water side
Here's what I've got: That valve at the bottom shuts off the cold water feed to the HW tank. I had assumed since it had another line hooked up to it, that it would pressurize the hot water si...
Forum Discussion
dieharder wrote:
If what you're saying is correct, it sounds like something might be wrong somewhere. The bypass valve should only be allowing the water (or antifreeze) to bypass the hot water tank, but not all the hot water plumbing to the taps. At least, that's what it sounds like you're saying. I can flip the bypass and turn the hot water taps on and the pink stuff flows to them.
All that was wrong was that I had missed a valve. It's a 30-year-old rig that has an old-school "2 valve" bypass arrangement. Rather than have a single bypass valve and anti-drainback valve, it has 2 manual valves. The second valve, the one I couldn't see because the "T" was in the way, is what allows the water (antifreeze in this case) to get to the hot water side of the system without filling the HW tank.
