My pool has been open for two weeks. It too has a "hard bottom". It has two dents. One that happend right after the pool was filled and the other a few days later. Both done by me as I was walking in the pool.

They are about the same size as yours.

To me it seems like the bottom is getting more and more hard (compacted) as time passes and although the dents are more obvious at night with the light on I guess I'm going to live with them as it would take a drain and refill to fix them.

I am going to tell my builder about them so if they should get worse or many others show up I'll have to get something done about it.

I did watch them putting the bottom in and from what I saw it looked as if they did a great job, it was as "smooth as a babies bottom". I just hope I don't have any more dents show up.

I sure will be glad when the ground around the pool settles so we can get the concrete decking done. I'm sick of vacuming mud out every time it rains.

Russell