Lock the Gate Having a gate won't do you much good unless it's locked. If you have a gate, but often find it unsecured, you may want to consider an automatic closure and safety latch that can be installed into your existing fence. Products today include magnetically-triggered closures that resist tugging and pulling from even the strongest child. Others offer torsion springs with locks that, once they are closed, require a key to open them. Yes, it is, if it means you're being told that someone's gained entry to the pool or spa.
Alarms can extend beyond the pool or spa as layers of protection.
If your backdoor leads to the pool or spa and you have toddlers who are active, consider having an alarm installed to sound when the back door is opened. These small units are turned on and off by a remote receiver. The units float on the water's surface and sound when children or animals enter the water. Barrier fencing alarms might be another consideration. If your fence can be opened by someone over a particular height, it might be a wise investment to install a fence alarm that sounds when the gate is opened.