I suspect I already know the answer to this but just wanted to check before I spend money I don't need to
I will be replacing the diverter valve in my Ravenheat 820/20 (yes I've read threads on how hard it is but I'm going for it anyway). Obviously I need to drain the water from both CH and DHW systems. Is there a way of me not having to touch the isolator valves? As I believe these are prone to leaking if messed with.
Can I not turn the cold water off at the mains, drain the DHW circuit from taps and the boiler drain plug and drain the central heating system without closing off the isolator valves?
Obviously, I'm trying to avoid having to buy new isolator valves in the event that one springs a leak if moved.
I know I'll need to put inhibitor into the CH again but I'd be happier doing this anyway as I have no idea if there is any currently in there!
cheers,
Paul.
I will be replacing the diverter valve in my Ravenheat 820/20 (yes I've read threads on how hard it is but I'm going for it anyway). Obviously I need to drain the water from both CH and DHW systems. Is there a way of me not having to touch the isolator valves? As I believe these are prone to leaking if messed with.
Can I not turn the cold water off at the mains, drain the DHW circuit from taps and the boiler drain plug and drain the central heating system without closing off the isolator valves?
Obviously, I'm trying to avoid having to buy new isolator valves in the event that one springs a leak if moved.
I know I'll need to put inhibitor into the CH again but I'd be happier doing this anyway as I have no idea if there is any currently in there!
cheers,
Paul.