backsiphonage Riflusso dovuto a sifonamento

Creator:	Elisa Paglia
Language pair:	English to Italian
Discipline:	Physics
Definition / notes:	Back-siphonage is backflow caused by negative pressure (i.e. vacuum or partial vacuum) in a public water system or customer’s potable water system.
URL:	http://safewatercommission.com/index.php/property-owners/backflow-education/125-what-is-back-siphonage