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  The Flowrate
  How to measure how much water flows from your shower every minute.
  How to measure how much water flows from your shower every minute. It may come as some surprise to find just how much water is flowing from your showerhead every minute. The higher the flow rate, the more water and power you are using. If the flow rate in litres per minute (LPM) is above 8-9 LPM, you are washing money down the drain. And you are causing unnecessary harm to the environment and all our children's future.

 
So how do you measure your shower flow rate?
  You will need
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  • One standard household bucket


  • One measuring jug with litre gradations


  • A timer or watch with a second hand
  Turn on the hot water fully, and then adjust the cold tap to ensure the shower is at your preferred temperature.

Catch the water in the bucket for exactly 20 seconds. Ensure you catch all the water – don’t allow water to spray wide of the bucket. Remove it from the stream as soon as 20 seconds is up.

Pour the contents of the bucket into the measuring jug. Then multiply the total amount of water you collected by 3 and this will give you the flowrate of your shower in litres per minute.

You may find that you have very low pressure in your home, and that your current shower flow rate is around 10 LPM. If this is the case, you may not benefit from fitting a water and energy saving showerhead. If the hot water flows much less strongly than the cold, then the water system in your home may not be balanced. Again, in this case, you possibly may not benefit from a water-saving showerhead. It may be worth having your plumber run a quick check on this, but only do so if the flow rate is over 12 LPM as your annual water and power savings will easily justify his/her fee.

Click here to find out how to do a "rule of thumb" test to estimate your household water pressure



 
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How to!!!

Measure your shower
flow rate


Estimate your home
water pressure


Calculate your likely savings

Install your new showerhead


 
 
 

- 2007 Eternally Solar CC -

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