Hi
I have had a vaillant multi point sealed heating system. The guy who fitted it put the fernox in with a funnel at the radiator outlet pipes before putting on the valves, then filled the system. Was this correct? since then I have removed a few of the rads to decorate and found in some rads the water that came out was very clear and clean and others were very dirty and black. This leads me to beleive it has not mixed very well. All the rads were getting hot, although some more than others. Any ideas or advice.
Thanks
I have had a vaillant multi point sealed heating system. The guy who fitted it put the fernox in with a funnel at the radiator outlet pipes before putting on the valves, then filled the system. Was this correct? since then I have removed a few of the rads to decorate and found in some rads the water that came out was very clear and clean and others were very dirty and black. This leads me to beleive it has not mixed very well. All the rads were getting hot, although some more than others. Any ideas or advice.
Thanks
