
Can you have a pool that has a underwater entrance to a separate pool with a lower level
So im wondering if you can have a fullsize outside pool that has a small opening near the bottom that you can swim through and it brings you into a pool in the basement.
Ive thought about having a catchbasin around the basement pool with a pump attached to constantly refill the outside pool, but im wondering how fast the water would be moving through the divider, and how much the pump would need to pump up. I tried using bernoullis equation and got 6.3m/s for the fluid velocity, but that seems too fast, and its been a while since ive used it.
Ive also thought about just pressurizing the basement room to 1.2atm.