WATER PRESSURE - IDENTIFY YOUR SYSTEM

To be sure you get the best performance from your tap you need to identify the plumbing system in your home to be able to determine the water pressure there.

Use the following information as a guide to help you to do this, it is recommended that you get the opinion of a professional tradesman who can check the pressure with a pressure gauge.

Gravity Fed (Low pressure)

Systems

• Cold water storage tank in loft

• Hot water cylinder in airing cupboard

• Hot water pressure is calculated by measuring the height from the storage tank to the tap

Example

1M drop = 0.1 bar pressure

2M drop = 0.2 bar pressure

5M drop = 0.5 bar pressure

Boosted Gravity Fed Systems

• Cold water storage tank in loft

• Hot water cylinder in airing cupboard

• Hot water pressure is determined by a separately fitted pump (refer to manufacturers specifications)

Usual pressure 1-3 bar

Combination Boiler Systems

• A combi boiler delivering hot and cold water on demand

• No storage tanks

• No shower pump

• Hot water pressure is dictated by the mains pressure and power of the boiler

Usual pressure between 1 and 1.5 bar

Mains High Pressure Systems

• Unvented cylinder with expansion vessel (eg ‘Megaflo’)

• No cold storage tanks

• No shower pump

• Hot water pressure is dictated by mains pressure

Usual pressure between 2 and 3 bar

All taps are shown with a minimum operating pressure symbol as below. Use this symbol to select the correct tap for your water system; for example if you have a gravity fed system with a 5 metre drop you will have 0.5 bar pressure and you should choose a minimum 0.5 bar tap or lower. If you have a high pressure system for example 3 bar you can choose any of our taps.