What efforts has your facility already made in water efficiency? Several questions for facility managers are listed below to help gauge a facility’s present water efficiency performance.
Top Management Commitment and Resources
Water Efficiency Survey
Identifying Opportunities - Target Areas for Water Reduction
- Are code-conforming 1.6 gpf commodes, 0.5 to 1.0 gpm faucet aerators and low-flow 1.5 to 2.5 gpm showerheads in use?
- Has once-through cooling water used in air conditioners, air compressors, vacuum pumps, etc., been eliminated with the use of chillers, cooling towers or air-cooled equipment?
- Have blow-down/bleed-off controls on boilers and cooling towers been optimized?
- Is condensate being reused?
PROCESS RINSING AND CLEANING
- Have you considered improved rinsing techniques such as counter-current systems, sequential use from high-quality to lower-quality needs, conductivity flow controls, improved spray nozzles/pressure rinsing, fog rinsing or agitated rinsing?
- Is water turned off when not in use by flow timers, limit switches or manually?
- Is the life of an aqueous bath being maximized via filtration and maintenance control?
- Are “dry clean-up” practices used instead of hosing down, and is first-pass precleaning conducted with squeegees, brushes or brooms?
ON-SITE WATER REUSE
- Is water quality matched with water quantity?
- Have reuse applications been examined for process water, landscaping irrigation, ornamental ponds, flush water and cooling towers?
- Are low-flow sprinklers, trickle/drip irrigation, optimized watering schedules and water placement, preventive maintenance and xeriscaping techniques in place?
- Are “electric eye” sensors for conveyer dishwashers installed?
- Have new water- and energy-efficient dishwashers been examined?
Water-efficiency Action Plan
Tracking and Communicating Results