Water Tank - Black Gunk appearing at bottom of tank

[jandal]

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Hi

Just noticed some black 'gunk' at the bottom of my hot water tank (image attached) - anyone know what's causing it, what I need to do, est cost to fix?

Many thanks
Jay

The tank is 180 lt
Rheem model 312.180.15
Date of manufacture 22/09/2003

Has been in use for 7 years.



Linkback: https://forum.plumbers.nz/drainage/83/water-tank-black-gunk-appearing-at-bottom-of-tank/545/

[chilly]

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Hi my advice would be to check the water quality for ph and if required fit filtration or softner system to correct what looks like a corrosion problem good luck

[jandal]

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We're in an apartment building, can we take softening measures locally or is it a building issue?

What do we need to do to fix this issue? Is it a replacement part?


Thanks

[Plumber]

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Have you checked all connections to make sure its all dry and nothing is leaking?

Plumber

[jandal]

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I can't see anything leaking (but obviously something must be leaking somewhere) - maybe I should ring a plumber tomorrow?

[Plumber]

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Yes, i think that's a good idea. No point guessing and experimenting as there could different reasons causing what i can identify as electrolysis.

Plumber