Over Pressure Protection

Are you experiencing frequent plumbing problems, screeching or vibrating pipes or short life of plumbing appliances?

If so it may be due to high water pressure that is wearing out all of your plumbing fittings, taps, fixtures and appliances.

The plumbing Australian standards AS3500 and ACT Planning and land authority (ACTPLA) state that when water is entering into a building the water pressure must not exceed 500kpa

Below is an extract from the AS/NZ 3500.1:

3.3.4 Maximum pressure within buildings

Provision shall be made to ensure that the maximum static pressure at any outlet, other than a fire service outlet, within a building does not exceed 500 kPa.

NOTE: Pressures above 500 kPa can cause damage from water hammer, reduced life of appliances, taps and fittings, and cause excessive noise in the system.

In a recent Master Plumbers ACT Newsletter senior plumbing inspector and deputy register Andy Ives made the below statement:

As you can see this clause even goes to the extent of supplying an explanatory note as to why the clause should be adhered too. When pressure is found to be excessive the licensed plumber needs to make provision (i.e. pressure limiting valve) for the installation to be in compliance.

It is expected this should happen before a final inspection takes place on site with the ACT Government Auditor (plumbing inspector).

FAQ’s on Water Pressure in Canberra:

  • Why is my water pressure higher than my friends and families in Canberra?Answer – Canberra has 47 reservoirs that supply the domestic household water. Pending on what reservoir your property is fed from, and how far below the reservoir your house is will change the supply water pressure.
  • Is Icon Water (formally ACTEW) responsible for supplying me with the correct water pressure?Answer – No, Icon Water are responsible for supplying you with high quality drinking water and with a minimum usable pressure. It is the home owner’s responsibility along with a licensed Canberra plumber to ensure your water pressure is below 500kpa within the building.
  • What is the number one threat of high water pressure?Answer – From my experience the number one immediate threat is a burst plumbing flexible hoses that connect most toilet cisterns, taps, or washing machines and dishwashers. These burst pipes can cause thousands of dollars of damage in a short period of time, and have a habit of blowing when home owners are away on holidays.
  • Will my warranty be voided on your tapware, hot water heater, washing machine, dishwasher and other plumbing fixtures be voided if the supply pressure is too high?Answer – Yes, all plumbing products will have a maximum water pressure inlet, often 500kpa, and if water pressure protection valves are not installed where required to ensure the pressure is kept below their maximum water pressure the warranty will be void.
  • What can be done to reduce high water pressure and protect my plumbing infrastructure?Answer – A pressure liming valve (PLV) can be installed on the pipework prior to it entering the building, normally at the water meter or under the house.
  • Will installing a Pressure Limiting Valve reduce the pressure in my shower?Answer – Yes – Having a PLV installed will reduce the shower pressure and may be noticed particularly when your water pressure is closer to double. 500KPA is still plenty of pressure and more than the standard ACT household and should be plenty to massage your shoulders.
  • Will installing a PLV get rid of my water hammer and screeching pipes?Answer – 90% of the time the answer is Yes, a PLV will eliminate water hammer. The other 10% the PLV will reduce water hammer, although some further work may be required to remove it 100%.

If you would like a free pressure test done at your property use the below book online button, and write Free Pressure Test in the Detailed Description field.

Please Note – Free pressure tests are done when we are in the area from an accessible tap, therefore you will not be required to be onsite and there is no need to lock in a timeslot.

Book Online now

Google Reviews

  • Jane Maher

    We had excellent service from Water Tight Plumbers. From making the booking to getting the job done, the staff were professional and friendly. Brad the plumber arrived on time, was extremely helpful, and cleaned up after himself. Plus, the taps don't leak anymore!

    View in

  • PM F

    Great response time, professional, friendly service. Certainly, not the cheapest in town, but I do believe it's a good example of "you get what you pay for." I highly recommend Water Tight Canberra

    View in

  • Peter webb

    Had excellent service from Ryan at Water Tight. Fixed toilets, new sink mixer & installed a pressure regulator to the water meter. Advised price upfront & 10% online booking discount. Job took longer than expected but the price remained the same. Quality job!

    View in

  • viktor b

    I had Andrew come in and clean the kitchen drains on a Saturday. He did a fantastic job cleaning the drains where two other plumbers before him failed. Prompt, professional and did the job perfectly. 5/5 would recommend

    View in

  • Dipankar Sen

    Many thanks for being open on Christmas Eve and much appreciated your service. Keep up the good work. Best wishes!

    View in

Recent Blog Posts

High Water Pressure In Strata Buildings

As strata plumbing maintenance specialist, we are often asked by strata managers, unit owners and even other plumbers on the best way of managing high water pressure in a Strata Titled Building. Firstly, What is High Water Pressure and why should we manage it? In short, High Water Pressure can cause significant damage to all […]

Read More

Why are Canberra Plumbers so Expensive?

I would be lying if I said I had never been asked the question “Why are plumbers so expensive in Canberra?” The people who asked this have compared our rate’s to that of a Doctor’s and Solicitor’s, and so I thought it was about time I created a blog post so that I can send […]

Read More
Canberra Backflow Testing

Backflow Testing Canberra

What is Backflow Testing in Canberra and why is it required

Read More
  • Available

    24hrs 7 Days a week

  • Servicing

    Canberra, ACT and region

  • Call us

    02-6195-9991

  • Book a local Canberra Plumber Online now and save 10%* off the service call fee.

    Book Online - Save 10%*

Logo