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- 14 Jan 2015
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Hello chaps,
A bit of a quandary - for a little background, I had a leaking PRV that wouldn't seal and kept on dribbling out of the overflow after a couple of plumber visits without resolution, I decided to have a go myself. I've replaced that and there's no drips now. as a result of that, I'd lost most of the inhibitor and the magnetite sludge built up.
Since then, I've put some cleaner in my system recently due to the some problems with the boiler reporting heat exchanger blockage codes occasionally (F3) and occasionally tripping the overheat thermostat.
I initially used the fernox aerosol cleaner through the filling loop, then moved to the normal fernox cleaner liquid that I put in the radiator.
so far, so good. lots of iron particles have come out - when you drain the boiler alone, it's coming out clear. radiators have been drained fully once and lots of particles came out.
The F3 trips have stopped and the system is working normally again, hot water and heating working as normal.
my question is and this is the problem, when I've initially put the cleaner in, it'll occasionally move through to the hot water system, so the first time I use the tap, I'll get the cleaner coming out of the taps. It was most noticeable when I used the aerosol fernox.
I don't want it to happen once the inhibitor is in as I imagine I'll lose it all over time and be back to square one.
The pressure hasn't dropped so far. it's holding the 1 bar I filled it to after adding the last round of cleaner.
the pressure doesn't rise over time, so I've ruled out a heat exchanger crack for now since it doesn't come up to mains pressure at all.
Given all that, I'm looking at the diverter valve itself - I've bought a rebuild kit off ebay and before I commit to the fun job of doing that I was hoping to find out whether I was in the right ball park.
apologies for the essay! any help would be greatly appreciated
cheers
alan
A bit of a quandary - for a little background, I had a leaking PRV that wouldn't seal and kept on dribbling out of the overflow after a couple of plumber visits without resolution, I decided to have a go myself. I've replaced that and there's no drips now. as a result of that, I'd lost most of the inhibitor and the magnetite sludge built up.
Since then, I've put some cleaner in my system recently due to the some problems with the boiler reporting heat exchanger blockage codes occasionally (F3) and occasionally tripping the overheat thermostat.
I initially used the fernox aerosol cleaner through the filling loop, then moved to the normal fernox cleaner liquid that I put in the radiator.
so far, so good. lots of iron particles have come out - when you drain the boiler alone, it's coming out clear. radiators have been drained fully once and lots of particles came out.
The F3 trips have stopped and the system is working normally again, hot water and heating working as normal.
my question is and this is the problem, when I've initially put the cleaner in, it'll occasionally move through to the hot water system, so the first time I use the tap, I'll get the cleaner coming out of the taps. It was most noticeable when I used the aerosol fernox.
I don't want it to happen once the inhibitor is in as I imagine I'll lose it all over time and be back to square one.
The pressure hasn't dropped so far. it's holding the 1 bar I filled it to after adding the last round of cleaner.
the pressure doesn't rise over time, so I've ruled out a heat exchanger crack for now since it doesn't come up to mains pressure at all.
Given all that, I'm looking at the diverter valve itself - I've bought a rebuild kit off ebay and before I commit to the fun job of doing that I was hoping to find out whether I was in the right ball park.
apologies for the essay! any help would be greatly appreciated
cheers
alan
