Real water during a live TV show ?

Real water during a live TV show - is that possible?
 
Yes, of course, as the as systems GmbH demonstrated this again 

with the use of 4 water walls, used at the Echo Awards Show 2016 in Berlin.

The special effects were used successfully for the song "Echoes in rain" presented by Enya.
Each of the 3m long water walls ensured a heavy rain on demand.

And due to a special construction it was gone again after a brief rebuilding phase,
to make room for the next show act.