That depends on your location and the applicable codes. If there is a shutoff at the house that feeds an underground line to a typical spout under the diving board, an atmospheric vacuum breaker would work effectively, assuming there is no secondary shutoff at the spout itself.
thanks! we just moved to an old, 15+ house with a pool so i was wondering if it was up to date and ready to go. we live in houston, so i'm guessing since backflow device is required, it's already got one.
Funny thing is I've seen pools with VERY small backflows. Don't know why.
Take a look around your pool pump and equipment.
If you had an inspection done on the house a licensed inspector would be required to tell you if you were missing one.
The spout under the diving board is already an air break, which is as good as it gets, and nothing else is needed, but the line between that spout and the potable water is looked at separately.