Sorry I'm 5 years late on this, hehe, but:

There is now a better way to do Interparticle Collisions, pouring liquids, etc...
Use nParticles.
Check this tutorial by Duncan Brimsmead, one of the developers of Maya Fluids & the Nucleus system etc.

https://area.autodesk.com/blogs/dunca...ith_nparticles