LOTUS:
LOTUS has no specific requirements for each water fixture, however, it requires project to reduce building domestic water consumption through all fixtures by 20% in comparison with a baseline model.
In order to score points under LOTUS, projects often select water fixtures that can save at least 20% of water use as compared to the following specifications.
Table W.5: Baseline fixtures water use (Source: UPC and IPC Standards)
Fixture |
Fixtures Water Use |
WC (single/dual flush) |
6.0 liters per flush (lpf) |
Urinal (flush) |
3.79 lpf |
Faucet (conventional) |
0.14 l/s |
Showerheads |
0.16 l/s |
Kitchen faucet |
0.14 l/s |
Clothes washer |
120 l/load of 8kg |
LOTUS accepts manufacturers’ data and does not require water fixtures to be labeled or certified under an independent program.