As 1.6 is a standard low flow toilet, in order to further reduce water use is it better to specify a 1.28 gpf or a dual flush toilet?
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Candace Small
29 thumbs up
January 5, 2012 - 6:14 pm
The 'Water Use Reduction Additonal Guidence' updated November 1, 2011, v4 provides a calculation example. They used 1.6 for the full flush and 1.1 for the low flush which provided a weighted average 1.35gpm.