Technology

Shower push-button timer

Shower push-button timer
© ramonespelt, image #51118461, 2017, source: Fotolia.com
Resources:
Water
Sector:
Hotel and restaurant
Investment cost:
Low cost
Payback time:
0.4 - 0.6 Year(s)
Cost savings:
376€ / Annual savings are estimated to be €164 on water bills and €203 on heating bills.
Resource type:
Water
Resource saving:
27L of water per shower.
Investment cost:
150 - 200€ / Investment cost depends on the scale of the project.
Assumptions taken in the presentation of the above performance indicators:

Savings are calculated assuming reduction of three minutes in (non-recirculated) shower duration at flow rate of 9 L/min.

Savings on water heating assume an oil-based heating system.

Push-button timers fit for shower time  

A push-button timer is a relatively simple technology for restricting the water flow of a shower to a designated length of time. Water stops running when the timer runs out, which prevents wastage. This reduces water utility bills and saves the environment.

How do they work? Push-button timers are a mechanical device (a pinhole within a diaphragm) that effectively closes the valve in the tap after around 30 seconds.

Result

These timers can save around 27 litres of water per shower. The devices have proven popular in public shower blocks, such as spas, pool areas, hostels and camp sites, which typically consume a lot of water.

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