They were painted by Brad Eastman and Vans The Omega. Brad says that they were one of the more challenging and unique structures that he has ever painted. He say that the pipes everywhere made for some tricky access. 

The whole thing would not have been possible if it was not for The Western Australian Water Corporation and their “Splash of Colour” program and FORMWA @formwa @watercorportation

Photo 📸 credit goes to Brad Eastman and his Instagram account @breadeastman with his permission.