Fernox TF1 Compact flow restriction.

[kozak1968]

What magnetic filters do you guy fit to your heating system?. I went to one today that was fitted on the return to a Vaillant 428, the boiler was in limp mode. After cleaning the filter which had about a tablespoon of crud in it, it worked fine. I would of thought that the compact filter could take more crud than this without loosing performance.