Our house has sliders into the backyard and no feasible way to fence the pool from the house. The line of defense needs to be the back wall. We have pins that keep the sliders from moving.Q1: Small children will find a way to climb into the pool. With a deck, you’re making it even easier for them.
If you haven’t already, you should consider adding a door chain high up so little people do not get out back by themselves.
Like this…
The upside to a pool is lots of the time in the water narrows the window where water is a huge danger to kids. The downside is while you are in the window, it's scary, you can't screw up. MP, on that note, try to add lights. Makes it really easy to check the pool if a kid is awol (thankfully they are normally somewhere else but I always check).