Hi, it looks like they already fitted an expansion vessel (see attached)? This was like this on install, we were the first owners of the new build. Does this change things? I.e. do I still need a new cylinder?
Thanks
Mark
Hi
I have an unvented Megaflow system, which is 10 years old. Since October last year we have had low pressure in the shower, I have had to take off the shower mixing valve every few weeks and clean out what I believe to be scale from...