Keep your heating system clean!
It is important to clean or flush the Magnetic Filter during the service of your boiler or heating system. This should be done every year to avoid build-up of sludge and other byproducts of corrosion inside the pipework.
Sometimes it is complicated when there is no space at the bottom.
In this video, I show you how to add a W/M hose to the drain point and flush the dirt out.
I hope it helps