I am replacing a radiator for a higher btu rated one. But have noticed that the old water was showing signs of rust contamination. I want to add inhibitor to the system but not sure how to. I have a Worcester Bosch combi boiler. Any suggestions please.
adding inhibitor to combi boiler - Worcester Bosch
- Thread starter gregst
- Start date
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before filling your new radiator poor it in that 
...it will be easier if you remove the plug that the air vent needle screws into, or the plug on the other side. Then with a funnel and a bit of hose pour it in through the top. This is after you have fitted the rad to the valves, but before you have opened the valves to let it fill with water.
If you have drained the systemn, you can pour it down one of the pipes that the rad valves go onto (assuming they run downwards).
If you have drained the systemn, you can pour it down one of the pipes that the rad valves go onto (assuming they run downwards).
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