I ran into some problems with last "liquid simulation", so it's about 3 days wasted on this... 
Right now it should be fine, i hope.

In details - when i was simulating it for the first time, i paused it in the middle, and then continued again. When i rendered it - there was a noticable "artefact" exactly at the frame, when i paused it  (apparently - you can't pause it, on big simulations). So i decided to re-calculate it again (~about 2 days). 
And on the second try it just crashed for whatever reason (actually, at the same frame, when i was pausing it).
So now i just cleaned all the cache, and run the simulation again.

Update: this time things goes well, it's already 30% of the simulation done now (the hardest parts).

The ending scene is looking really awesome, so it's worth re-doing it.