You have to arrange these tracks to restore the flow. This free version is an introduction into the game, but it may be worth picking up even if you have the paid for app because it has 48 new puzzles which are not found in the full version.
Some of the exciting pitfalls in the game include locked gates, shifty conveyor belts, floor switches, gates and floating bridges, which all makes for a lot of fun.
What I really love about it is not only that it is a beautiful stylish game, but you can spend as long as you like on each puzzle. This is great because you know you can figure it out in your own time, so you really can pick up and play. Did I mention how beautiful and stylish it is? It really isn’t a typical water pipes game and has so much more scope in playtime and challenge, with levels not only getting progressively harder and harder, but also more creative. Plus, you can skip a level and go back if you have to.
Both versions are on Game Center, so you can compete with your friends.
You can grab Aqueduct 101 for free from the App store or jump straight in with Aqueduct for $2.99.