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Author Topic: Water Tank - Black Gunk appearing at bottom of tank  (Read 2809 times)

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Offline jandal

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Water Tank - Black Gunk appearing at bottom of tank
« on: November 20, 2010, 11:02:12 PM »
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: http://www.plumbers.co.nz/forum/ask-plumbers-public/2/water-tank-black-gunk-appearing-at-bottom-of-tank/545/

Offline chilly

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Re: Water Tank - Black Gunk appearing at bottom of tank
« Reply #1 on: November 21, 2010, 02:53:03 AM »
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

Offline jandal

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Re: Water Tank - Black Gunk appearing at bottom of tank
« Reply #2 on: November 21, 2010, 04:15:04 AM »

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

Offline Plumber

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Re: Water Tank - Black Gunk appearing at bottom of tank
« Reply #3 on: November 21, 2010, 05:30:53 AM »
Have you checked all connections to make sure its all dry and nothing is leaking?

Plumber
Please note that the advice I am giving is only my opinion and not necessarily a fact.  Please refer to our terms and conditions.

Offline jandal

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Re: Water Tank - Black Gunk appearing at bottom of tank
« Reply #4 on: November 21, 2010, 05:33:46 AM »
I can't see anything leaking (but obviously something must be leaking somewhere) - maybe I should ring a plumber tomorrow?

Offline Plumber

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Re: Water Tank - Black Gunk appearing at bottom of tank
« Reply #5 on: November 21, 2010, 06:19:29 AM »
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 


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