Hi all
Having flushed my old CH system repeatedly with fresh water and all-manner-of cleaners, I was disappointed to find that my MagnaClean filter had "picked up" significant amounts of crud after 1 year of operation post-upgrade. (I had at some point either replaced or removed and manually flushed all rads as well). The material collected by the filter was approx half sludge and half gritty magnetite.
As I had the main pipe route upstairs changed from 15 to 22mm, the mechanical disruption as well as the improved flow could well have released some more stubborn crud I expect.
So the question is, will the larg(ish) magnetite crystals form in the space of a year, or is this more likely to be stuff that has been dislodged from the old pipe work.
If this material is still being created, then I will have to look for a possible cause. Haven't seen pump over issues and the layout around the pump and vent appears correct.
TIA
Phil