We've had issues with brown water for a while, and it's been confirmed it's not the supply or the pipework itself, but is limited to the hot water - which apparently means it's crud build-up in the cylinder.
In an attempt not to have to replace the cylinder, we'd prefer to be able to somehow reduce the crud to an acceptable level - the plumber suggested purging the cylinder, which I'm yet to do, but the issue will probably still remain given the outlet for doing this is about 15-20cm above the bottom of the cylinder, so much of the sediment will remain below the outlet level and therefore will be untouched.
Can anyone advise how we could go about significantly reducing the level of sediment? I know there are plumbers on here eg @Aredwood?), and I was hoping they and other members may have some ideas.
I was thinking of purging it as suggested, then filling it just a bit to disturb the sediment before purging it again, and then repeating a few times.
Thanks for any ideas!