How Much Water Do Low Flow Plumbing Fixtures Save?

Low Flow ToiletIn today’s environmental conscious world, many people talk about the addition of low flow toilets and shower heads, but do they really make a difference? They do–and here’s how.

Low Flow Toilets

The amount of water you can save with low flow toilets depends on current toilet water usage per flush and number of flushes per day.

Most standard toilets in homes today use about 3.5 gallons per flush. The new low flow toilets use 1.3 gallons per flush–a savings of 2.2 gallons per flush. If your home is old and the toilets have never been upgraded, they may use as much as 7 gallons per flush!

The average family of 4 flushes the toilets in their homes 2 times each, per day, for a total of 8 flushes per day.

2.2 gallons saved per flush x 8 flushes per day x 30 days per month = 528 gallons saved per month or 6,336 gallons per year!

How much actual water would you be saving?

Per month, you’d save more water than could fill this fish tank.

500 Gallon Fish Tank

Or this propane tank…

500 gallon propane tank

Per year you’d save more water than could fill this above ground pool…

Above ground pool

Or this 5,000 gallon aquarium…

5,000 gallon aquarium

Here’s the best part, these new low flow toilets can cost less than $150 each!

Low Flow Shower Head

Low Flow Shower Heads

Just like with toilets, the water savings you can see with low flow shower heads depends on more than one factor: current shower head water usage per minute, number of showers taken daily and average length of shower.

Many of the old shower heads use 4 gallons of water per minute. New low flow shower heads can use 2.5 gallons or less per minute–a savings of 1.5 gallons per minute.

The average family of 4 takes 4 showers per day.

The average shower is 10 minutes.

1.5 gallons saved per minute x 4 showers per day x 10 minutes per shower x 30 days per month = 1,800 gallons per month saved or 21,600 gallons per year!

Do you want to know how much water that is?

You could save more water per year than would fill this below ground swimming pool..

20k gallon swimming pool

Or you could put out a forest fire…

The Supertanker

New low flow shower heads can cost less than $20 each and are easy to install yourself.

Upgrade your bathrooms with low flow fixtures!  Save water and add value to your home.  All these water savings can be passed onto the next owner of your home so make sure they know that!  When you sell your home, use a broker who knows how to maximize every feature of your home.

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  • Thank you for sharing those tips. The pictures are so nice but I agree that we have to save water.

  • Of all the appliances and plumbing fixtures in home, the toilet is among the worst offenders when it comes to wasting water. 
    Low flush toilets are a great way to cut back on the amount of water  use in homes, but there are other ways as well.