Originally posted by: Brec
Originally posted by: John Creasey - Boiler Installation & Service, Gas & Heating Maintenance
This is my first Forum post. My issue is related to this discussion so decided to follow this thread rather than start new...
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Hi Brec -
A couple of thoughts....
You say that the system was 'flushed' when the boiler was put in...
How old are your radiators ? If fairly old, they are likely to have been heavily 'sludged' at the time the boiler was changed.
How was the system 'flushed' ? Was it 'flushed through' or actually chemically cleaned or 'power flushed' ?
I would hazard as guess (and only a guess) that the rads are oldish and the system was never properly cleaned in the first place and that the problem really dates from then.
Certainly, a magnetic/particle filter sounds like a must and as soon as possible (agreeing with RBS), but a filter alone will help but not solve the problem. A proper clean does sound like it is needed - or even updating radiators if really poor.
An option may be to install a filter like the 'Adey Professional2' or which can easily have a magna cleanse unit connected to it which has very powerful magnets to flush and clean easily. Once cleaned, the P2 unit will carry on removing particles and debris.
Note that there are other filter units which can very easily have cleaning units attached to them. Suggestions here are not necessarily recommendations.
I still suspect that the source of your problem may date from when the boiler was installed -
You have a very good boiler there and it is well worth protecting.
Hope that is a little help.
Thanks for your reply and advice Muttley. I had new radiators put in the year following the boiler installation by the same guy. He seems very proficient to me and is a Vaillant installer listed on Vaillants own web site He flushed the system for the boiler but not before the radiator installation. I need to get back to him after the Easter break.