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Q1. Do Heritage Taps come with a warranty?
Yes, all Heritage Hardware tapware products come with a five year limited warranty for peace of mind. This certifies the tap is free from defects in material or craftsmanship for five years of the product. This only applies to the original consumer and does not cover damage caused by everyday wear, misuse, or alteration.
Q2. What is the difference between an All Pressure tap and Mains Pressure tap?
Statistics show 60-65% of all NZ homes will have unequal water pressure. This means that they have the cold water coming in off the street at good water pressure but the hot water is fed thru a low pressure hot water cylinder. This creates unequal water pressure (high cold & low hot) Typically you will find this in homes that are over 10-15 years old. This sort of pressure system requires a tap suited to All Pressures as they have a special cartridge & hot flexi hose to allow more hot water thru. Mains pressure is generally found in new homes built within the last 10-15 years – the cold comes in off the street mains & the hot water is fed thru a mains pressure hot water cylinder – this creates mains pressure on both hot & cold  - any tap can be used in this installation.
Q3. How do I find out what water pressure my house has?
Look on the side of your hot water cylinder or simply turn the tap from hot to cold to see if the cold is much stronger than the hot. If so then you have unequal pressure and will require a tap suited to All Pressure.
Q4. What is the purpose of a Isolator Filter Stop?
This item has 3 functions:
  1. It gives you the ability to turn your water off at the wall instead of having to go to the road & finding your mains
  2. On unequal water pressure it allows you to turn the cold flow down so that it is closer to the hot water pressure
  3. It has an inbuilt filter to stop any foreign particles coming thru the line & getting caught in the ceramic cartridges
Q5. Do I have to install an Isolator Filter Stop on my taps?
Strictly speaking yes. Our warranty states that failure to use an inline filter MAY void the warranty. The reason for this is because it is not a  fault of the mixer if the plumber or installer has not flushed the lines first & removed any foreign particles e.g. copper fillings/PTFE tape etc.  A lot of the time the installer will put in the mixer without flushing the lines & all of the fillings etc. will then get flushed into the cartridge & that is when the mixer will drip because you cannot then turn the mixer off properly because filings are caught.
Q6. What does the WELS (water efficiency label) mean as shown on your taps?
As of April 2011, most water-using appliances and many plumbing fittings are required to display a Water Efficiency Labelling Scheme (WELS) label. The WELS label lets you identify products that use less water. It applies to washing machines, dishwashers, toilets, urinals, showers, and taps.
It displays two types of info:
  1. A star rating that shows relative water efficiency for the same type of product. The more stars, the more water-efficient. Most products have a maximum of 6 stars; but in the short term, showers will have a maximum rating of 3.
  2. A water consumption or flow-rate figure of litres per minute for taps. The label for taps will also say if the product is designed for mains or low-pressure water systems.
For more information on WELS visit
Q7. What water pressure do I have?
The two most common systems are:

Unequal Pressure:
This is the most common system in New Zealand. A header tank or pressure reducing valve is usually used to supply low pressure water to the hot water cylinder.

How to recognise this system?
  • The cold water flow is much greater than the hot
  • There's a header tank in the loft or a pressure reducing valve just before cold water enters the hot water cylinder
  • Hot water cylinders are marked 3.7m head or 7.6m head
  • Vent pipe through the roof
Equal Mains Pressure:
This system uses a special hot water cylinder which is fitted with a pressure limiting valve for safety.

How to recognise this system?
  • The hot and cold water flow is strong and equal
  • The hot water cylinder is described as a mains pressure cylinder
  • Almost all gas hot water systems are mains pressure