Above ground pool question?

Question

I'm looking at buying an 18ft. 48 in. or 52 in. deep pool. I want to know how deep the water level would be for each after it's filled. I'd like to go w/ the 52 in. but my son is 47 in. tall and I don't want it to be over his head.

Answer 1

48 inches is how high the edge is so the water would be around 42 inches give or take

Answer 2

Get the pool that you want. Fill it to a depth that you are comfortable with. You can add more water next year when your son is taller.