New boiler installed.

[Riley]

Maybe they were hoping to see a wet patch...

Aren't we all Mas

 

[Spanish]

Beat me to it, I was going to post " I am always hopeful of a wet patch"

 

[Masood]

Aren't we all Mas

Forgotten what one is, mate....

 

[Riley]

Amen brother

 

[jonnyswamp]

I'd say the installer was spot on, probably ran it for an hour at max with chemical cleaner in the system (x800 or similar) to comply with manufacturers guidelines as he couldn't be sure it had been cleaned previously
I'd keep his number if I were you and liase with him in the next course of action to get the leak(s) resoved