Plumbing freeze protection system
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United States of America Patent
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Feb 3, 2015
Grant Date -
Jan 2, 2014
app pub date -
Jul 2, 2012
filing date -
Jul 2, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A plumbing freeze protection system comprises a fluid connection between a water supply line and a waste line. The fluid connection bypasses a plumbing fixture fluidly connected to the water supply line. A valve operable with the fluid connection alternately prevents water flow from the water supply line to the waste line, and allows water flow from the water supply line to the waste line within about 25 percent of maximum volumetric flow rate of the water supply line through the fluid connection. A timer is adapted to control the valve. The valve is open for a predetermined time period to deliver a short duration, high volumetric flow rate of water to the waste line to minimize ice formation in, and remove existing ice from, the water supply and waste lines.
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