FREQUENTLY ASKED QUESTIONS

Why does my hot water cylinder overflow from time to time?

When water is heated it expands; this is called thermal expansion. When heated from cold, the volume of water can increase by as much as 3%. For a 180L hot water cylinder, this could be as much as 5.4 litres. Hot water cylinders are designed to relieve expanded hot water through an open vent pipe on the roof or by way of a relief valve and pipe to an outside wall or drain. There have been a number of cases where these vent or relief pipes have been blocked off by owners trying to stop the dripping. In some cases, where a secondary safety vacuum break was not fitted, the water cylinder has exploded with devastating consequences. Walls and roofs have been blown off and houses moved on their foundations. These days, cold water relief valves are installed to the inlet side of the hot water cylinder to save hot water.

To test whether your dripping relief pipe is experiencing normal thermal expansion, or if it has a faulty valve:

  • Turn off the power supply to the tank for five minutes.
  • If the dripping stops, this is normal thermal expansion.
  • If the dripping continues, the valves are probably faulty.

Can I lower the thermostat on my hot water cylinder to 55 degrees Celsius, rather than installing a tempering valve?

No. Hot water must be stored at over 60 degrees Celsius to prevent the growth of legionella bacteria in the hot water tank. A tempering valve is fitted to the hot water outlet to lower the temperature to 55 degrees Celsius before it is consumed.

Why should I install a tempering valve to my hot water cylinder?

The Building Code requires that the temperature of hot water delivered to sanitary fixtures used for personal hygiene purposes like showers, baths and basins should not exceed 45 degrees Celsius for rest homes, schools and early childhood centres, and 55 degrees Celsius for all other buildings. A tempering valve reduces the temperature of the hot water that is stored in your hot water cylinder before it is consumed.

If I install a limiting valve, will it make my already poor hot water pressure drop even more?

No. If you have a low-pressure hot water cylinder that is restricted by a pressure-reducing valve, a limiting valve will not affect the hot water, only the cold. In fact, in some cases limiting valves improves the mixing of hot water in your shower.

Pipes rattle and bang all the time. What causes this?

The pipes may be inadequately clipped, or the water pressure could be too high and therefore need a limiting valve installed.

BOOK YOUR JOB

Call (09) 263 7621 or complete the form below.




    Site Safe logo
    masters-plumbers-logo
    2020_New Gold Mission Supporter
    • Billie-jean Laing

      The service I receive from South Auckland Plumbing is by far the best I've received in a while. I have requested their assistance on 3 seperate occasions over the last 2 years to fix different plumbing related issues. Some of these issues have been quite urgent for me and each time I have dealt with them, they have been quick to respond and send one of their friendly crew out to my house to assist. I will definitely continue to use them in the future. I highly recommend them!

      8/05/2020
      Donna Maree Parkinson

      The service we received from Chase was outstanding. Friendly, helpful, positive and an asset to your company - he represents you well.

      7/14/2020
      Rachel Hume

      We have used South Auckland Plumbing multiple times over the past few years and will keep doing so. Always a great experience! Very responsive, great communication, good value. We are happy customers ๐Ÿ™‚

      5/20/2020
      Jonelle McNeill

      Excellent service in an emergency (no hot water). Super quick response, loveliest plumber ever and really affordable cost. So appreciative of the amazing service. Thank you ๐Ÿ™‚

      4/23/2020
      Lucy Li

      Positive: Quality, Responsiveness, Value

      Iโ€™ve used South Auckland Plumbing for quite a few times now. Iโ€™ve found them to be very professional and communication has been really good. Would definitely recommend!

      9/25/2020
      Alana Carpenter

      Positive: Punctuality, Quality, Responsiveness, Value

      Have used South Auckland Plumbing on several occasions and they have never let us down. Always show at the scheduled time, always on par with their quotes, professional and reliable.

      9/25/2020
    • Thomas Gardner

      South Auckland Plumbing are great plumbers. they always leave I tidy site and complete jobs quickly

      1/03/2020
      Daniel Rajek

      South Auckland Plumbing came out twice in the last couple of weeks to do various job at my home and the service was brilliant and great workmanship. Thank you Karen & Desmond i would definitely recommend you guys.

      6/18/2020
      Lesley Ford

      Great company to work with - very professional, fast, reliable and friendly. Highly recommend

      12/12/2019
      Tam Vo

      South Auckland plumbing were excellent. They responded to our call quickly and the plumber who completed the job was super friendly. The only downside was that he bombed our toilet because of the steak and cheese pie I gave him for lunch hahahaha. Sorry mate, I didn't know you couldn't eat dairy. Their quote for the job was about 40% less than some other plumbers we contacted. Would highly recommend.

      12/11/2019
      Megan Lynch

      Thanks guys - very informative and friendly staff. Great service.

      6/19/2020
      Eric Dyason

      Positive: Professionalism, Punctuality, Responsiveness

      Replaced Ajax valve on hot water cylinder and also another valve. Turned up when they said they would. Friendly and professional. Would use again - Thanks

      9/25/2020
    • David Ing

      Positive: Punctuality, Quality, Responsiveness, Value

      I've used South Auckland Plumbers around 6 times times over the last year and been happy with their service every time. Each time time they got the job finished same day (small jobs) and at a great price. My experience is that they show up on time and communicate if they cant make it. At the end of a job they also give me some insights into what they've fixed, the parts they use and any advice they think is useful. We've used other plumbers and generally get an expensive bill or they have to come back later as they don't have the parts. Would totally recommend

      9/25/2020
      Fonz Leat

      Positive: Punctuality, Quality, Responsiveness, Value

      South Auckland plumbing are awesome. They came to our emergency quickly after we put a spade through our water pipe and fixed it promptly. Cheers South Auckland Plumbing you guys are life savers!

      9/25/2020
      Carolyn McLean

      Great service, on time and trusted professionals. Highly recommend!

      5/04/2020
      Sue Killian

      Positive: Value

      Great to have a tradie company that charges a fair price for a good job. Thanks guys. Highly recommend and will use again.

      9/25/2020
      Christine Lowrie

      We found South Auckland Plumbing to be very honest and reliable. Andrew, the plumber who was on-site was competent, helpful and friendly. Would highly recommend this business.

      9/25/2020
      Annette Saines

      use these guys regularly. very prompt service and extremely trust worthy

      1/05/2020
    • Rob Feasey

      Positive: Professionalism, Punctuality, Quality

      Came to property during lockdown, great service . Professional, friendly and. on time.

      9/25/2020
      Paula Skilton

      Positive: Professionalism, Punctuality, Quality, Responsiveness, Value.

      I have used South Auckland Plumbing for years. They are my go to for all my Plumbing needs. Always friendly, Professional, prompt services. Stress free. Keep up the great service. Highly recommend.

      9/25/2020
      Carol Stewart

      Can highly recommend South Auckland Plumbing. Found their service to be professional, extremely knowledgeable, cleaned up after themselves and would not hesitate to use or recommend them for any job big or small.

      3/29/2018
      Matey Croft

      Very reliable, honest and efficient service. Admired how much respect Andrew displayed by removing his shoes every time he came back inside from being under the house. He took the time out to explain the damage and solution. Received a phone call from Karen to advise me that I would receive a refund as the work didn't take as long as I was quoted. How's that for honesty. I wouldn't hesitate to use their service again or recommend them. Thank you South Auckland plumbing.

      9/25/2020
      Jay Swainson

      South Auckland Plumbing has been amazing. We have been renovating our bathroom and due to things being done in stages they have been able to work in with our timeline making it happen. Plumbers being sent out have been professional, courteous with great workman ship and prices are very reasonable. Would defiantly use them again and recommend them. Thanks for all your help ๐Ÿ™‚

      8/21/2017
      Thomas Gardner

      Positive: Punctuality, Quality, Responsiveness, Value

      south Auckland plumbing are great plumbers. they always leave I tidy site and complete jobs quickly

      9/25/2020
    • vaughan o'malley

      Fast and friendly service, price was less than I expected and end result ended up working great and improving my shower pressure. Great team to deal with.

      10/12/2020
      David Ing

      I've used South Auckland Plumbers around 6 times times over the last year and been happy with their service every time.

      Each time time they got the job finished same day (small jobs) and at a great price.

      My experience is that they show up on time and communicate if they cant make it.

      At the end of a job they also give me some insights into what they've fixed, the parts they use and any advice they think is useful.

      We've used other plumbers and generally get an expensive bill or they have to come back later as they don't have the parts.

      Would totally recommend

      8/13/2020
      Tam Vo

      South Auckland plumbing were excellent. They responded to our call quickly and the plumber who completed the job was super friendly. The only downside was that he bombed our toilet because of the steak and cheese pie I gave him for lunch hahahaha. Sorry mate, I didn't know you couldn't eat dairy. Their quote for the job was about 40% less than some other plumbers we contacted. Would highly recommend.

      9/25/2020
      Beach Uth

      We had a flood in our laundry and needed to run new pipe, South Auckland Plumbing came and sorted it in no time, they are awesome๐Ÿค™๐Ÿพ

      1/04/2020
      Paul Muollo

      The few times we have had to use South Auckland Plumbing they have been outstanding. TurnEd up when they say they would. Explained what the issue was and what the options were to repair. Karen in the office is awesome when it comes to communication. Cheers Paul

      9/25/2020
      Rachel Hume

      Positive: Professionalism, Punctuality, Quality, Responsiveness, Value

      We have used South Auckland Plumbing multiple times over the past few years and will keep doing so. Always a great experience! Very responsive, great communication, good value. We are happy customers ๐Ÿ™‚

      9/25/2020
    • Paula Skilton

      I have used South Auckland Plumbing for years..They are my go to for all my Plumbing needs. Always friendly, Professional, prompt services. Stress free.
      Keep up the great service. Highly recommend

      7/16/2020
      Billie-jean Laing

      Positive: Professionalism, Punctuality, Quality, Responsiveness, Value

      The service I receive from South Auckland Plumbing is by far the best I've received in a while. I have requested their assistance on 3 seperate occasions over the last 2 years to fix different plumbing related issues. Some of these issues have been quite urgent for me and each time I have dealt with them, they have been quick to respond and send one of their friendly crew out to my house to assist. I will definitely continue to use them in the future. I highly recommend them!

      9/25/2020
    South-Auckland-Plumbing-logo

    As registered Master Plumbers our work is covered by the Master Plumbers Guarantee for 12 months, giving you peace of mind.