I'm planning to add some Sentinel X400 sludge remover to my central heating system and at the same time fit a towel radiator - I think I can get away with a partial drain
After I've run the sludge remover for a couple of weeks, I was then planning to fully drain down, remove and flush each radiator in turn, fit TRVs in place of the standard valves and also replace the lockshield valves that are leaking
I'm concerned about getting the filling correct so that I don't
a) damage the boiler by running it dry
b) damage the pump by running it dry
Where the pump is located there appears to be some sort of vent - the only marking I can see is 'Flamvent'. This was fitted over 20 years ago
I thought there was 'How to drain and refill a central heating system' but can't find it - anyone know where it went to
Thanks for any advice
After I've run the sludge remover for a couple of weeks, I was then planning to fully drain down, remove and flush each radiator in turn, fit TRVs in place of the standard valves and also replace the lockshield valves that are leaking
I'm concerned about getting the filling correct so that I don't
a) damage the boiler by running it dry
b) damage the pump by running it dry
Where the pump is located there appears to be some sort of vent - the only marking I can see is 'Flamvent'. This was fitted over 20 years ago
I thought there was 'How to drain and refill a central heating system' but can't find it - anyone know where it went to
Thanks for any advice