This is a new version of liquid simulation sandbox, in which you can create water, oil and foam, add pipes and sewers, draw walls and air emitters. A new Grid function is added for drawing straight lines. The maximum number of particles (drops) is 5000. It is based on smoothed particle hydrodynamics (SPH) - Langrangian method of fluid simulation. This simulation is quite process-intense, sometimes it helps when you close other tabs in a browser.