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<title>Water Supply Line for Only the Pool?</title>
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<lastBuildDate>Sat, 11 Apr 2026 15:42:04 GMT</lastBuildDate>
<pubDate>Tue, 5 Nov 2013 21:40:02 GMT</pubDate>
<copyright>Copyright &#xA9; 2013 Illinois Section American Water Works Association</copyright>
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<title>Water Supply Line for Only the Pool?</title>
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<description><![CDATA[Do I need a backflow device installed on a water supply line that only fills the pool? I have a valve on it and the pipe terminates above the pool.]]></description>
<pubDate>Tue, 5 Nov 2013 22:39:37 GMT</pubDate>
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<description><![CDATA[The answer is not always a simple yes or no. In your particular circumstance, it appears as though you have a sufficient air gap from preventing any backflow. Regardless of whether or not a ball valve is on your water supply and is generally turned off, a valve is not a backflow preventer. Please contact your city inspector to verify your conditions. The city should have a plumbing inspector who is a licensed plumber. Have them make the final judgement call for you. Thank you for contacting us!]]></description>
<pubDate>Tue, 5 Nov 2013 22:40:02 GMT</pubDate>
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