B
Bluenose1940
I have had a problem with my heating for quite some time now whereby I have three radiators that do not work at all and one that gets luke warm. This weekend I took the bull by the horns and removed the 8 port manifold and, as expected (and hoped for) I found that the flow side of the manifold was more or less completely sludged up but not with what I would call a 'thick creamy sludge' but with what appear to be small flakes of sludge mixed in with the creamy bit. I was really pleased to see this (if that is the right way to put it ha ha) as I imagined that this is what was causing the problem.
Also, some time ago I had fitted a MagnaClean filter that was very full when I looked at it, so this is obviously doing its job properly, I have thoroughly cleaned this before putting it back together, I have also had a sludge removing chemical circulating around the system for about 6 weeks prior to doing this job. This chemical obviously had no effect on the manifold though! Anyway, to continue, I have 11 radiators, three of which are piped directly off the 22mm flow and return pipes and, the other 8 came off the 8 port manifold. All of the radiator pipes are 10mm and are set in the concrete floor.
I have now replaced the 8 port manifold with 4 Speedfit Maniolds so the sludgey manifold has been dispensed with. However, the three problem radiators still remain a problem and are not heating up.
My question is, as it was the flow side of the manifold that was gunged up (the return ports were clear) is it likely that there is either sludge in the pipework of the faulty rads or could it be in the rads themselves (or both), it would seem logical that any sludge would be on the flow side of the system but, where do I go from here? It will probably be difficult to push anything down the pipes as if there are 90degree bends I aint gonna get round em!
One further point, about 18months ago I did remove each of the radiators and flush them through in the garden.
Any advice to overcome this problem will be greatly appreciated. Many thanks.
Also, some time ago I had fitted a MagnaClean filter that was very full when I looked at it, so this is obviously doing its job properly, I have thoroughly cleaned this before putting it back together, I have also had a sludge removing chemical circulating around the system for about 6 weeks prior to doing this job. This chemical obviously had no effect on the manifold though! Anyway, to continue, I have 11 radiators, three of which are piped directly off the 22mm flow and return pipes and, the other 8 came off the 8 port manifold. All of the radiator pipes are 10mm and are set in the concrete floor.
I have now replaced the 8 port manifold with 4 Speedfit Maniolds so the sludgey manifold has been dispensed with. However, the three problem radiators still remain a problem and are not heating up.
My question is, as it was the flow side of the manifold that was gunged up (the return ports were clear) is it likely that there is either sludge in the pipework of the faulty rads or could it be in the rads themselves (or both), it would seem logical that any sludge would be on the flow side of the system but, where do I go from here? It will probably be difficult to push anything down the pipes as if there are 90degree bends I aint gonna get round em!
One further point, about 18months ago I did remove each of the radiators and flush them through in the garden.
Any advice to overcome this problem will be greatly appreciated. Many thanks.