Central Heating Inhibitor

I need to replace the inhibitor in my system. Decorating has seen most of the inhibitor flushed away.

What's the simplest way to go about this. Any particular recommendations as to different inhibitors.

It is a closed system off a combi boiler.

Thanks jk

Try closing off a radiator and injecting the mastic type stuff in through the radiator bleed point. You'll have to catch the displaced water unless you've got some thin windscreen washer type tubing handy. Jon

This is what my plumber recommended I use when I've finished moving radiators around (BTW the cheapest place I found for X100 is Screwfix).

As for getting the stuff into the system, I'm installing a towel warmer in the bathroom and he informed that unscrewing one of the valves in the top and using a funnel is the cheapest and easiest solution.

HTH

Jeff

recommendations

Thanks for the ifo guys