<?xml version="1.0" encoding="UTF-8" standalone="no"?><?Xpress productLine="abcb-glossentry" ?><abcb-glossentry id="_555bfec9-1eb9-4598-b60d-9205b6740a81" outputclass="abcb-glossentry"><glossterm id="_7d9f321c-2ba5-4c2c-8f8b-b685960195b8">Backsiphonage</glossterm><glossdef outputclass="glossdef"><p>A reversal of flow of water caused by negative pressure in the distributing pipes of a water service or supply.</p></glossdef></abcb-glossentry>