I am building an above-ground pool kit and have read endless posts and watched YouTube videos about levelling. Here is my question. I am at the dirt-digging stage, I know sand comes later but I am not there yet.

OK, I understand why it is supremely important that the pool walls be as level as possible.

But if I have a dip of, say, an inch or two x a couple of square feet in the middle of the pool ... what does it really matter? Especially given some pools actually have "deep ends" with tons of water in what is really just a very large "dip in the middle of the pool".

These dips will of course disappear when I put sand down but I know the sand may compress over time and eventually the pool bottom may be a bit bumpy. I am OK with that as long as it's all safe.

I am a bit of a perfectionist, but levelling within more than an inch or two x 300 square feet of dirt that is full of rocks is VERY difficult! Any advice greatly appreciated!