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Easyflush Wave

hand motion-activated WC flushing valve with no-touch infrared sensor, for use with an exposed or concealed cistern

Price(s) From
£ 327.60
Price (incl. VAT)

Easyflush Wave

hand motion-activated WC flushing valve with no-touch infrared sensor, for use with an exposed or concealed cistern

Price(s) From
£ 327.60
Price (incl. VAT)

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Product Information

Easyflush Wave features a hands-free and water-conserving toilet cistern flush and fill valve which is actually two interlinked valves in one: a lift/drop valve which empties the cistern and a delayed action float valve which controls refilling. It also includes an integral overflow pipe to prevent flooding. The compact single-piece unit is located over the outlet by a bayonet-type locking device which simplifies installation. Easyflush Wave hand motion-activated infrared sensors meet the Disability Discrimination Act (DDA) requirements and are Part M compliant.

The product has an “Intelligent Memory” feature, whereby if the user requires an additional flush they can bring their hand close to the infrared sensor to activate an automatic further flush once the cistern has finished refilling.

The inlet float valve operates sequentially with a delayed action, which only allows the cistern to begin refilling after it has been completely emptied and the outlet valve has closed. This unique feature prevents an increase in the volume of water per flush.  In other systems water can enter the cistern before the outlet valve has closed, thus increasing the volume of water per flush.

Easyflush Wave can be fitted into a concealed or an exposed cistern and can also be easily retrofitted.

Easyflush Wave is powered by 4 x 1.5V AA (LR6) batteries or a 6V DC mains adaptor which can be installed behind service panels. The battery option allows the Easyflush Wave to be installed inside exposed cisterns.

A Concealed Cistern is also available, which is suitable for service wall-panel concealed installations to provide a 6 litre flushing WC solution:

  • Cistern dimensions with lid fitted: H 300mm x W 435mm x D 150mm
  • Available with either 38mm (1 1/2″) or 50mm (2″) diameter outlet flush pipes
  • Side entry water inlet supplied as standard, but bottom entry is also available

Easyflush concealed cistern

Also available as an optional extra is a Multi-Product Power Supply Unit (PSUC) to mains-power up to 10 Easyflush Wave infrared sensors from a single fused spur.

Additional customised washroom settings are obtainable via a hand-held remote control Infrared Configuration Unit (ICU) which is available as an optional extra. The remote controller enables rapid automatic range configuration to the specific washroom dimensions and deactivation of the 12 hour hygiene cycle flush function.

Easyflush valve: 212mm W x 283mm W x 93mm D, Side inlet: 84mm, Bottom inlet: 228mm, Infrared sensor: 48mm W x 48mm H x 27mm D
Flush pipe sizes
44mm or 50mm diameter (Flush Pipe not supplied)
Water supply
0.5 bar minimum dynamic or working pressure
Back siphonage protection
Class 4 type double check valve (integral in inlet)
Wave sensor operating range
Up to 18cm
Refill duration after part flush
40 seconds
Refill duration after full flush
65 seconds
Part flush duration
2 seconds
Full flush duration
6 seconds
Power requirements
Either 6V from 4 x alkaline AA (LR6) batteries or 6V DC regulated from mains adaptor (1a fused spur required)
Normal battery life
2 years under typical usage conditions (a single red flashing of the LED indicates that the batteries are low and need to be replaced)
Control classification
Maximum load
7.5W 1.25A (6V DC) EMC emissions tested at load
Rated temperature range
Action classification
Type 1.Y
Pollution classification
Degree 1
Ingress protection
Product Features
Infrared sensor-operated WC cistern flush and fill valve
User-configurable to minimise water usage and maximise water savings
No-touch means hygienic, with no cross-contamination
Installer programmable flush volumes for improved water economy, with 12 hour hygiene flush cycle and dual flush options
Flush (outlet) and delayed-action Fill (inlet) valves combined in one unit
Available in active (Wave) or passive (Walkaway) operational modes
BREEAM Wat 01 compatible product
Ensures compliance with the Water Regulations

Easyflush Wave is an electronic WC drop valve which uses a hand motion-activated infrared sensor to activate toilet flushing. Fitted into an exposed or concealed cistern as required, the flushing valve is activated by the user bringing their hand close to an infrared sensor. The dual flush mode enables the user to select either a part or full flush by the length of time their hand is in front of the sensor.

For a part flush the hand is held in front of the sensor for up to one second and, for a full flush, over one second.

Easyflush Wave is ingeniously designed to use low power consumption, as the product uses the supply water pressure to lift the drop valve plunger and activate the flush. This ensures that when in use Easyflush Wave delivers a very energy efficient solution, harvesting energy from the water.

Easyflush Wave sensors can be fitted on either the top, side or front faces of exposed cisterns, as required.

For concealed cistern installations, Easyflush Wave sensors should ideally be fitted to the right-hand side of the toilet, between 700-900mm above the seat height and between 300-400mm to the right of the toilet centre line.

Here is a selection of documents, designed to ease specification and installation:

Installation Guide

Easyflush Valve

Download PDF
Product Brochure

Commercial Washroom Product Brochure

Download PDF
Specification Wording

Cistermiser & Keraflo Specification Wording

Download PDF
Specification Catalogue

Cistermiser Specification Catalogue

Download PDF
Cistermiser & Keraflo – from Tank to Tap

Products for the Commercial Washroom

Cistermiser Easyflush Installation


BIM objects are available for download from the NBS National BIM Library, in both Revit and IFC formats.

Click here to view Cistermiser products on the National BIM Library

Warranty Cover

Parts only warranty (no labour) for equipment purchased in the United Kingdom, Ireland, Isle of Man and the Channel Islands. Components of the unit which are proven to be faulty or defective in manufacture will be exchanged or repaired.

Warranty Period

1 Year from Date of Manufacture

Extended Warranty Period (available on Registration)

3 Years from Date of Installation


Extended Warranty Terms

To register and qualify for Extended Warranty cover, the Cistermiser product must be correctly installed with the Commissioning Checklist fully completed as itemised in the Installation Guide (included with the product), to demonstrate compliance with the product installation instructions.

Each Commissioning Checklist activity should be dated and additional warranty details provided to enable registration: product serial number, installation date, installation site address and the installer’s name and contact details.

Extended Warranty can be registered online (via the Warranty section of this website) or by completing and returning the Commissioning Checklist from the Installation Guide (included with the product) to this address: Cistermiser Ltd, Unit 1, Woodley Park Estate, 59-69 Reading Road, Woodley, Berkshire RG5 3AN.


Product FAQs

We’re here to Help!

Can I check what kind of indicators I should see for normal sensor function after user activation?

Easyflush Wave hand motion-activated no-touch infrared sensors:

  • Single green flash once a second = part flush
  • Double green flash once a second = full flush
  • Constant rapid green flash = re-flush has been requested
I have completed the installation but there seems to be no water entering the cistern. What can I do?

Things to check:

  • No obvious indicator.

Solution: Ensure that the water supply is reaching the valve. Minimum working pressure of 0.5 bar dynamic, maximum 6.0 bar static. This may be due to air in the inlet hose (normally found with low pressure). Ensure loop is facing downwards. There could be a blockage. Ensure the filters on the inlet and outlet side of the valve are clear.

  • The sensor may be covered.

Solution: The anti-vandal mode will have been triggered. You need to remove the object/debris from the sensor so that the valve can resume normal functionality.

I have completed the installation but the valve does not seem to be working at all. How can I fix this?

Things to check:

  • Is the sensor light not flashing when a hand is placed in front of it?

Solution: Ensure the power supply is connected. If the mains power is being used through the mains adaptor, then check that the mains adaptor is working by reverting to the battery pack.  Remove the mains adaptor when using batteries.


  • Is the sensor light flashing red slowly or not at all when a hand is placed in front of it?

Solution: There is likely to be low battery power. Change the batteries.  If the mains power is being used through the mains adaptor, then check wiring and contact Cistermiser on 0118 969 1611 for advice.


  • No obvious indicator.

Solution: Ensure that there is a good water supply and pressure of 0.5 to 6 bar.

I have completed the installation but there is a continuous water flow into the pan from the cistern. What can I do?

Things to check:

  • No obvious indicator.

Solution: Check the seal of the flush valve and clean away any debris or scale. Water is flowing through the overflow; ensure that the water entering the cistern is being shut off by adjusting the float accordingly. If the float is set too high, water will continuously flow in the cistern and out of the overflow.

  • Is Sensor flashing red slowly or not at all when hand is placed in front of it?

Solution: This is likely to be due to low battery power. Change the batteries. If operated by mains power then check wiring first. Call Cistermiser if still a problem after these checks.

The toilet flushes when in use. What could be causing this?

Things to check:

  • Working as normal otherwise.

Solution: Ensure that the sensor is mounted in the correct position. Refer to the installation schematic – see Section 3 of the Installation Guide (available to view in the Downloads area of this website).

Ensure that the sensor range is also correctly configured. Refer to the advanced setting guide schematic – see Section 9 of the Installation Guide (available to view in the Downloads area of this website).

I have completed the installation but still experiencing issues. What can I do?

Things to check:

  • Is there a shuddering noise? 

Solution: There is air in the system so flush the valve repeatedly to purge the system.

  • Does the sensor display a double red flash?Alternatively this could be due to a faulty solenoid. If so please call Cistermiser on 0118 969 1611 for advice.

Solution: This could be due to faulty wiring, so check the wiring.

  • Does the sensor display a red flash once every second? 

Solution: Either there is low battery power. Change batteries. If the unit is being operated by mains power, then check wiring and then contact Cistermiser.

  • Does the sensor display a red flash twice every 3 seconds?

Solution: Sensor is either covered or heavily scratched. Uncover sensor or polish out scratches on sensor.

Not found the answers to what you’re looking for? We’re here to help!

Whether you need help with product support or installation advice, our dedicated support staff are on hand today.

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