Plumbers' technical note – Flexible spray hoses

This publication is for: 
Plumber

This technical note provides information on the appropriate backflow prevention requirements when installing flexible spray type hoses in close proximity to toilet pans and other soil fixtures. This practice creates a risk of cross contamination between substances which are of high hazard to human health and the drinking water supply. 

Building Commission
Technical standards
Last updated 24 Oct 2016

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