Particle Death on Collision?

Hi,

I've been assigned some basic particles for a level in our game and can't seem to figure out a really simple problem. Basically I have water drops falling from the ceiling and I want them to die the moment they collide with the surface, but I can't get them to go away in the particle system settings.

Heres whats happening currently:

I want them to collide with a surface, trigger a sub-emitter Splash particle (I have this ready and working) and then die/disappear rather than stay on the surface like in the gif above.

Thanks

 

I think this is a particle problem? Look into the particle forum? Delete this question and post one more time there.
Did you try to move the floor collider hide the floor rendering mesh to take a look of what is happening under?