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FAQs about WEp2 :

How does the CEE Tier 3A criteria for commercial clothes washers compare to ENERGY STAR certified washers?

Is the WaterSense label really required, even if a non-labeled fixture has a comparable flush or flow rate?

Not all fixture types can get the WaterSense label. Which fixtures do we need to ensure have the WaterSense label for our project?

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NC-v4 WEp2:Indoor water use reduction

WaterSense Labeled Products

Reference Guide indicates WaterSense label requirements are mandatory in U.S. It appears Compliance Path 2 Usage-Based Calculation can be used to show that, in aggregate, non-WaterSense labeled fixtures can be installed if they comply with prerequisite requirements. Therefore, WaterSense labeling requirements are not mandatory, correct?

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Batya Metalitz
Technical Director, LEED
USGBC
LEEDuser Expert
225 thumbs up

Wed, 07/30/2014 - 22:24

Hi Mark In the US, the WaterSense label is mandatory in v4 regardless of path. In the form you'll need to complete a checkbox stating that all applicable fixtures (tank type toilets, urinals, private lav faucets and showerheads) are WaterSense labeled and provide product cutsheets or manufacturer information to this effect. This should make it relatively easy to meet the prerequisite threshold using the usage-based approach since WaterSense fixtures are already 20% or more below baseline.

Thu, 10/02/2014 - 23:45

Does this still hold for existing fixtures? My impression was that all NEW fixtures were to be WaterSense labeled, but obviously couldn't be if they were already installed. True?

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