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What is the copper tubing extending from the house to the ground?

April 26, 2017Copper extending ground House tubing

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What is the copper tubing extending from the house to the ground?

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A. This is the copper that leads from your valves to your pressure vacuum breaker (PVB.) The PVB prevents water from flowing back into your potable water supply once it has passed by the device. Some systems may be installed with a reduced pressure assembly (RP.) The RP serves the same purpose as the PVB but is used in situations where a PVB will not adequately protect the potable water supply.