Narrowed it down to a Dolphin but not sure which, Nautilus CC+, S200, or Proteus DX4?

[Geebot]

Here is the only question I have about the S200.
I love it, it cleans great, but when I go to take it out of the pool each time after cleaning it drops a load of dirt from the filter in the pool and I have to grab the net real quick to clean it.
How do you guys avoid this? Do you take it out upside down so it doesnt fall out of the bottom or what?

There should be a flap valve at the bottom intake (a fabric sleeve with metal strips at one end). This is designed to close when the robot is not vacuuming to prevent any dirt from reentering the pool. You may want to check yours to see if th evalve is missing or improperly seated.

S200 S300 S300I Non Return Flap