Hydrant Wash Systems

Description

Effective hydrant wash systems can reduce both the time taken and water used to wash yards. Unlike flood wash, water can be saved by targeting only dirty areas for cleaning. Even greater water savings can be made with systems that can handle recycled water.

Water from the second effluent pond is pumped to a storage tank next to the yard overnight. A pump at the base of the tank delivers a high volume of water to hydrants located at different vantage points.

Flow at the nozzle is around 2000L/min. Correctly matched pipe sizes, pump and hydrants are critical for efficient & effective cleaning. 

Tips on Getting the Best Result

Site hydrants for good coverage and to deliver water to drains. Positive feed to pump for adequate delivery of water. 

Pros and Cons

Good clean as can manually direct flow. Slope of yard is less critical so can be installed on yards with multiple slopes. Commercially available at $7,000 - $15,000.

OH&S risks when using reused water not well investigated. Odour if re-using water. 

Issues in Making it Happen

Labour

OH&S risks of breathing aerosols.

Environment

Effluent system needs to cope with large volumes of waste generated in a short time.