| 摘要 |
The present invention entails a prefabricated safety device and method for installing the device in any swimming pool and that is capable of eliminating dangerous vacuum pressure created in the main drain line of a pool when an object or person becomes trapped against the drain or other suction line inlet of a swimming pool recirculating pump system. The vacuum elimination safety device is prefabricated and is a complete kit (unit) that can easily be installed directly onto the main drain suction line of any swimming pool recirculating pump system.
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