Garlick household Neighbourly 3.8.18

I have just had my 18 month old hot water cylinder fail. Both the plumber and the electrician told me they are run off their feet replacing cylinder elements. There is a chemical reaction that occurs when chlorinated water is heated and passed thru copper pipe. The council are now aware of this but are denying any responsibility. So not only are CCC and Dr Alistair Humphreys poisoning half of Christchurch, they are also slowly wrecking our homes. Unfortunately for Dr Humphreys and the CCC, two of the biggest rebuilds in Christchurch – the new Hospital and the justice precinct – are completely piped in copper. Please share as the more ratepayers who know about this the better.
– John Garlick from Hillsborough


I have just had to have my water cylinder replaced. It was old but chlorinated water may have hurried it along!
– Joy Masters from Cashmere, 04 Aug

Likewise a 2 year old cylinder with 2 elements….both corroded
– Dugald Wilson from Woolston, 04 Aug

Our 30 month old cylinder being replaced. And same story from plumber who is flat tack replacing cylinders due to chlorinated water. Our new cylinder is vitreous enamel which we are hoping to get more life from. Since the 2011 earthquake we have now had three new cylinders
– Naomi Hannah from Cashmere, 04 Aug

I too have had three replacements since the earthquake 😦 Thanks for sharing about the cylinders. I have noticed hot water temperature dropping! What’s to stop the replacement elements corroding?
– Chris Coleman from Huntsbury, 07 Aug

Filtering the water 💦 is your answer – for all yr needs
– Greg Woods from Mount Pleasant – Redcliffs, 08 Aug

Why should we have to pay to filter our water…….
– Janice Lisle from Sumner, 08 Aug

It is not only copper elements, as our last one was stainless steel, but the chlorine reacts with the welds on stainless causing the cylinder to leak around where the pipes go in. Hurrumph! Not at all happy with the unexpected cost of having chlorinated water. We were not warned by council of this.
– Naomi Hannah from Cashmere, 11 Aug

We were not warned by council of this. Agreed. This looks like a liability issue. If a plumber uses initiative to offer a filter system on piping BEFORE water enters tank, they could make a fortune!
– Viv Yeki from Woolston, 11 Aug

They Are!!
JG – John Garlick from Hillsborough, 11 Aug

Oh! Smart guys! 😉
– Viv Yeki from Woolston, 12 Aug

Janice .. why ! Because the Council are under a higher authority and they don’t get the final say , the government and the dhb do..
Lianne has told a friend of ours the she is under pressure to keep the chlorine in and to install fluoride as well ongoing that is John pheflert the water board CEO of NZ
He has Beca (A guy on his board owns this company) a paid up board member that found the problem with the Wells then his other paid up member that own chlorine & fluoride company that supplies chlorine to the chch City Council, John is pro both and believes that side effects are collateral damage for the chch residents 😜
I have personally spoken to him so know what he thinks
🤕🤪 – Greg Woods from Mount Pleasant – Redcliffs, 12 Aug

I’ve just had mine replaced too. My plumber said there have been a lot needing fixing since the aftershock on 15th July. I’m claiming from E.Q.C.
– Anne Kelly from Woolston, 11 Aug

RT: “Christchurch plumber Darren Chatwin says July and August have been the busiest months for cylinder repair and maintenance since the Canterbury earthquakes in 2010 and 2011. ‘Our workload regarding hot water cylinders has probably gone up 400 percent’ … Christchurch hot water cylinder manufacturer Superheat have had to double their production over the last five weeks, bringing in extra staff and working overtime to keep up with demand” – Chlorine suspected in Christchurch hot water cylinder failures, TV3 Newshub, 14 Aug

At last this is getting noticed.Chlorine in our water supply is the biggest con job ever pulled in New Zealand. One Man forms a lobby group, gets Chlorine suppliers,a public health official ,and a couple of council managers to join him in putting pressure on the council to fix a problem that didn’t exist They and their mates get rich and the whole of Christchurch suffer. Then like all good con artists they disappear only to pop up again in another town pushing something else.
– John Garlick from Hillsborough, 15 Aug

Yes I’m another just had mine replaced
– Liz Lewis from Bromley, 15 Aug

I have doubts whether chlorine is responsible. My jug element should be effected too is that is the problem! My plumber has blamed the aftershock on 15th July for my cylinder leaking! The jug is fine.
– Anne Kelly from Woolston, 15 Aug

Your jug is fine because its not copper. Its a chemical reaction between heated chlorinated water and copper that is doing the damage
– John Garlick from Hillsborough, 15 Aug

Just wondering if this is also an issue in other parts of New Zealand? Many areas have chlorinated water. Also, are the elements copper?
– Rohan Bekker from Woolston, 16 Aug

RT: The hardened elements are titanium (coated?), the lesser ones some kind of alloy?

Funny only in Christchurch, lime in the water also eats Cooper pipes and elements it’s called hard water so make sure cylinders and elements are rated for hard water, I’m from Taranaki and we’ve had chlorine water for years and the farms had hard water which eat elements so don’t blame chlorine
– Darryll Senior from Somerfield, 17 Aug

I Fully agree, its not the Chlorine, Ive only recently moved to Christchurch from Oamaru, and we have had Chlorine in the water there for as long as I can remember, and I lived there for over 40 years, the dose of the chlorine was probably 20 times stronger than what you have here, also brought and sold 8 homes over many years and never had to replace a cylinder or thermostat yet…So look at maybe the fact that the cylinders made now are crap, and maybe the cooper in them is of a very inferior quality, very thin and imported cheaper from overseas……I know the quakes destroyed a lot of cylinders, but the product replacing them is probably the problem not the chlorine…..
– Judy Slater from Waltham, 18 Aug

I thought cylinders in hard water areas were fitted with sacrificial anodes to stop the cylinder corroding? Maybe this wasn’t done?
– Rohan Bekker from Woolston, 18 Aug

I think much of the problem is people don’t understand the sacrificial anodes will only last a certain time frame and need replacing.
Sadly we are a city of hardened water that has left lime deposits in cylinders that do cause corrosion to cylinders. The chlorine that is now added works as a cleanser and is eating away at those hardened build ups, which can build up very quickly, this leaving holes and creating issues.
Christchurch manufacturers have now had to investigate why something they have had next to no issues with over many decades have started to have issues since March.
No coincidences there… simple fact is the chlorine added to a non chlorinated region will have it’s set backs And issues. However some warning of the health issues and housing issues would’ve been nice.
– Lisa Spence from Bromley, 22 Aug

I think it could be a problem with cheap import of copper products, because a few years ago electrical cable and motors were pulled off the market due to inferior Copper. So I would start looking at the copper being used.
– Darryll Senior from Somerfield, 18 Aug

Which means we are now drinking the copper too??
– Lynley Jenness from Waltham, 18 Aug


RT: An update to story, re CCC’s investigation, on Newshub Late, Fri 17.8.18 – – but TV3 seem to expire their news links after a couple of days – don’t want the archival overhead? :-/ CCC were looking into it (but HWC failures are not new in south chch)

Christchurch City Council chlorine map, from 26 March 2018

Hot Water Cylinder Not Working – Do You Need An Electrician or Plumber?


Robertshaw household to CRA 3.8.17

Beckenham kettle scale too

Hey, is the “hard water” problem the issue leaving bad scaling in my brand new kettle?

– Jess Robertshaw from Beckenham

– Neighbourly reply to our local inquiry, CCC water burns Cashmere HWCs, noted at

Morrison household to CRA 21.7.17

gas hot water unit damage

yes we are in percival street and we are on to unit number 3! for gas hot water, got told the same thing at last installation, that it is the water. Seems to be worse since the earthquakes.

our latest is a Rinnai but did have a Bosch cannot recall what the first one was it lasted the longest, def think the water issues is post EQ.

– Zarnia Morrison, Sydenham

– Facebook reply to our local inquiry, CCC water burns Cashmere HWCs, noted at

Drijfhout household to CRA 21.7.17

gas hot water unit working

Rinnai units are suited to the water in the area. We were advised against getting a bosch. We live just past worsleys rd on cashmere rd.

– Marten Drijfhout, Cracroft

– Facebook reply to our local inquiry, CCC water burns Cashmere HWCs, noted at

Canning household to CRA 20.7.17

gas hot water unit damage

Hi, I’m in Selwyn street, I switched to gas for my hot water, my water pressure was rubbish. Brand is Bosch, in use for about two years and had to have outside unit replaced, was told water is damaging the parts.

– Lorraine Canning from Somerfield

– Reply to our local inquiry via Neighbourly, CCC water burns Cashmere HWCs, noted at

M_______ household to CRA 15.7.17

repeated HWC and kettle element damage

Frequent HWC element burnouts in beautiful Bowenvale Valley

Starting to lose count of the number of elements we have needed to replace in our home – 1972 original HWC owned house since 1982 (35yrs).

Going back, say last 10-12 yrs – replacement element June 2006, Sept 2010, Feb 2011, new Rheem cylinder with new element July 2011, burnt out July 2015 and again May 2017!!! Thats more than enough replacements – haven’t added up the total cost of parts, van mileage, callout, labour etc.

Our electric jugs/kettles arent lasting and have had several Sunbeam plastic and s/s models replaced under Warranty or just out of Warranty period. Our current s/s Breville has been leaking water from base for several months until it got so bad needed to buy replacement last weekend! Still locating Warranty but when found (tonight?) we should obtain a refund under the CGA!

Also in recent months the inside of our electric jug is a daily, if not several times weekly, task to try to keep clean of scale! Even the new jug which is only 5 days old has signs of build-up already. Prior to this purchase, a retailer told us that a Warranty may not cover a leaking jug because of liquefaction getting into the water supply, but we didn’t have liquefaction from the quakes in our area!

– __b & __y M_______ from Cashmere, D_______d Drive

– Reply to our local inquiry via Neighbourly, CCC water burns Cashmere HWCs, noted at

Price household to CRA 14.7.17

titanium element much better

We were a rebuild (Brickworks Lane) and had a brand new cylinder. We went through three elements (One every three months). They finally replaced it with a titanium element on Christmas Eve! This seems to have fixed the problem.

– Michael Price from Huntsbury

– Reply to our local inquiry via Neighbourly, CCC water burns Cashmere HWCs, noted at