Doctor Drivel wrote:
"Chris Bacon" wrote ...
Dave Fawthrop wrote:
Chris Bacon wrote:
|There should be absolutely no connection between the CH and
|the other side of things. Are you sure of your facts?

Untrue. In the old old days people used primatic systems

HW and CH circuits were kept separate by gravity.

Even with a primatic system there should be no connection
between the CH and the other side of things, so you're
wrong - unless you are claiming that mixing of CH water
with the rest is normal.

He is more right that you that is clear. Only two air bubbles separate
the CH and secondary fresh water.

The systems keep both water systems separate. I said that. DF said that.
Now you have also said that. Thank you for agreeing with me as well!