Cheers Dave,
Figured it may be that straight forward but I'm a chippy with no plumbing experience to speak of.
You'll have to excuse me for asking what may be a silly question but when you refer to the different valve types how would I know what I'm looking at? They look like taps although...
Need to change water pump, There is what looks to be a shut off valve above and below the pump. Do I need to worry about creating an airlock in the system? Was also considering introducing a central heating treatment to clean the system through. Where do I need to put it in? And are there any...