Well now I need to go watch Duck Soup.

Shredding beef

I’m not necessarily familiar with subfloor heating systems but I’ll give it a shot. I found this video that helped sort some of it out.

https://youtu.be/OSJkjcTHVLE?si=aGyvO6ue3Ng0FT9I

From what I can tell it looks like the hot water comes in from the top line and heads into the manifold but also down to the mixing/regulating valve on the bottom line. After the water runs through the system it comes out to the return line and back out to the heating system.

My first thought is to try closing the blue valve on the return a bit and give it a minute. My thought process is that reducing the cold/out flow will help the circulating pump pull the water from the mixing valve. You could also try messing with the regulator to see if the temperature changes when you adjust it.

My favorite story about Charlie Watts:

“One anecdote relates that in the mid-1980s, an intoxicated Jagger phoned Watts’s hotel room in the middle of the night, asking, “Where’s my drummer?” Watts reportedly got up, shaved, dressed in a suit, put on a tie and freshly shined shoes, descended the stairs, and punched Jagger in the face, saying: “Never call me your drummer again. You’re my fucking singer!”[44][45] He expressed regret for the incident in 2003, attributing his behaviour to alcohol.[20]”