Interesting water pipe games, connect each water pipe, so that the water pipe can be successful, can use the tips in the level.It seems to be relatively simple, but in the later stage, the water pipe will be more and more difficult to connect. water pipe games,pipe connection puzzles,logic puzzles,brain training games,puzzle game,online puzzle,challenging puzzles,brain workout,fun games,adventure games,unique water game,problem solving,water flow,mental challenge