I am helping a friend to drain down his microbore central heating system, I am told it is just a normal unvented heat only boiler (have not seen it yet), flush each rad in the garden then add sentinel x800. Leave running hot for ? long, flush and add inhibitor.
Then he explained he had these twin entry rad valves under the microbore system www.gasman.fsbusiness.co.uk/system_basics.htm
I have not seen these before, they look a complete nightmare.
Does the sludge get caught up in these, especially with that long thin pipe going into the radiator. I assume their are manifolds around the house as well and I'm not sure if I'm going to help him do more harm than good. Any advice greatly appreciated. He should repipe, but that is not feasible at the moment!
Thanks.
Then he explained he had these twin entry rad valves under the microbore system www.gasman.fsbusiness.co.uk/system_basics.htm
I have not seen these before, they look a complete nightmare.
Does the sludge get caught up in these, especially with that long thin pipe going into the radiator. I assume their are manifolds around the house as well and I'm not sure if I'm going to help him do more harm than good. Any advice greatly appreciated. He should repipe, but that is not feasible at the moment!
Thanks.