The GreenYour Blog

Oct 07, 2009

Low-flow shower got you grumpy?

Low-flow shower got you grumpy?

Let me say it, a really low flow shower head can put you in a terrible mood. 

I am not advocating the rain shower "deluge" variety that was heavily promoted a decage ago, but there is nothing worse than a light spray of water when you're looking for a splash.

Most showerhead fixtures installed before 1992 have flow rates over 5 gallons of water per minute- more than necessary. The federal requirement now is 2.5 gallons/minute for shower heads and 2.2 for faucets.  It's a very acceptable level but if you choose to not upgrade to low-flow you can still save water and your conscience. 

Consider these scenarios:

BASE CASE SCENARIO

Assume shower head releases 4 gallons /minute. Shower  7 minutes. You use 28 gallons

LOW FLOW SHOWER HEAD ROUTE

Install low flow shower head that releases 2 gallons/minute  (slightly below the max requirement). Shower 10 minutes (because of longer time required to get soap out of hair with limited shower head flow). You use 20 gallons

TURN OFF TAP PERIODICALLY

Keep your 4 gallons /minute showerhead. Shower 7 minutes, but …cut water running time to 3 minutes (turn off to sudse up, shave and shampoo). You use 12 gallons

Turning off the tap periodically wins!  So yes, keep the old shower head if you must, but then commit to lathering up water-free. Deal?

Comments

10/28/2009
11:01am
Ana Maria

What about the time that takes the heater to heat the water again, every time you turn off and on the tap?

10/28/2009
1:11pm
greengoddess

Good point, but if you only have it turned off for say a minute or so, then there will be minimal drop in temperature. It's a bit like the arguement that keeping lights on is more economical than turning off b/c of the energy req'd to "start them up", but the truth is the start up energy is minimal. Turning off is BY FAR a more economical route to go than keeping turned on.

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