SVRS Devices
These are used in conjunction with an approved main drain cover and skimmer. They come in three main varieties:
- Mechanical devices which let air into pump to ease the vacuum when entrapment or blockage is sensed by device.
- Electro-mechanical devices that shut off pump when blockage/entrapment is sensed.
- Pumps or motors with built-in software that shuts off pump when blockage/entrapment is sensed.
Read more about this topic: Virginia Graeme Baker Pool And Spa Safety Act
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