Oh, you found the pool net. Clearly it helped!

(She gestures widely to the water. The joke is that the pool still looks really, really terrible.)

I think you're just making stuff up to try and keep the egg off of your face. Nobody puts a door at the bottom of a pool. How would you ever open it without having to refill the entire thing? It isn't practical. Besides, it would be impossible to open underwater because of all the pressure.