Plumbers NZ is New Zealand's largest online plumbing, gas and drainage resource. Plumbing exam help, plumbing news, directory and free quotes.

« drainlayers piping under slab | About drain system. »
Pages: [1]   Go Down

Author Topic: Water Tank - Black Gunk appearing at bottom of tank  (Read 5988 times)

0 Members and 1 Guest are viewing this topic.

Offline jandal

  • Newbie
  • *
  • Posts: 3
  • Karma: +0/-0
Water Tank - Black Gunk appearing at bottom of tank
« on: November 21, 2010, 12:02:12 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: https://www.plumbers.nz/drainage/83/water-tank-black-gunk-appearing-at-bottom-of-tank/545/
Share Post | Report to moderator   Logged

Offline chilly

  • Jr. Member
  • **
  • Posts: 34
  • Karma: +1/-0
Re: Water Tank - Black Gunk appearing at bottom of tank
« Reply #1 on: November 21, 2010, 03:53:03 PM »
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
Share Post | Report to moderator   Logged

Offline jandal

  • Newbie
  • *
  • Posts: 3
  • Karma: +0/-0
Re: Water Tank - Black Gunk appearing at bottom of tank
« Reply #2 on: November 21, 2010, 05:15:04 PM »

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
Share Post | Report to moderator   Logged

Offline Plumber

  • Administrator
  • Hero Member
  • *****
  • Posts: 736
  • Karma: +52/-2
  • ***#1 Plumber***
Re: Water Tank - Black Gunk appearing at bottom of tank
« Reply #3 on: November 21, 2010, 06:30:53 PM »
Have you checked all connections to make sure its all dry and nothing is leaking?

Plumber
Share Post | Report to moderator   Logged
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

  • Newbie
  • *
  • Posts: 3
  • Karma: +0/-0
Re: Water Tank - Black Gunk appearing at bottom of tank
« Reply #4 on: November 21, 2010, 06:33:46 PM »
I can't see anything leaking (but obviously something must be leaking somewhere) - maybe I should ring a plumber tomorrow?
Share Post | Report to moderator   Logged

Offline Plumber

  • Administrator
  • Hero Member
  • *****
  • Posts: 736
  • Karma: +52/-2
  • ***#1 Plumber***
Re: Water Tank - Black Gunk appearing at bottom of tank
« Reply #5 on: November 21, 2010, 07:19:29 PM »
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 
Share Post | Report to moderator   Logged
Pages: [1]   Go Up
« drainlayers piping under slab | About drain system. »

* Share Topic

Share via digg Share via facebook Share via linkedin Share via twitter

Similar Topics

  Subject / Started by Replies / Views Last post
xx
Reverse use of heating coil in Solar hot water tank

Started by Sunsheat

3 Replies
2685 Views 		Last post April 18, 2013, 08:17:41 PM
by Smith Titos
xx
Empty header tank

Started by MikeChch

3 Replies
3890 Views 		Last post July 05, 2010, 07:18:25 PM
by 15mmhexnipple
xx
Question about header tank

Started by Jolene

5 Replies
9363 Views 		Last post November 10, 2010, 10:54:37 AM
by Jaxcat
clip
How not to install a solar tank

Started by ptopnz

1 Replies
1948 Views 		Last post May 07, 2013, 03:57:36 PM
by Plumber
 
Share this topic...
In a forum
(BBCode)
In a site/blog
(HTML)