Question from Frank Bond, via email:
Is there a simple way to repair a small pinhole in a steel panel radiator other than getting it rewelded or having to replace it? The customer’s radiator is in prime condition, isn’t old in anyway and has been cleaned with an inhibitor.
Response from Martyn Bridges, director of marketing and technical support at Worcester, Bosch Group:
It’s not advisable to repair radiators should a pinhole leak occur. Generally this is an indication that there is more underlying problems and that there is corrosion taking place within the system. You mention that an inhibitor is present within the system and that the radiator looks in prime condition, with both these facts being correct it is unusual for a pinhole leak to occur. I therefore would recommend an analysis of the system water is made to see whether corrosion is taking place. All inhibitor manufacturers offer this service. I would recommend you contact one to progress this further.