- Main article: Pipes
Pipes transport water in Where's My Water? Pipes have different parts and variants for different uses, such as drains and spouts.
- Main article: Trigger
Triggers are what activate anything with the same color, such as Platforms, Fans, Vacuums and more.
Trigger Pads that are activated only when when the fluid sits on the Trigger pad, and stops moving when the fluid stops touching the Trigger pad.
- Main article: Platform
Platforms are a 'wall' that can move around on various angles and directions. Platforms are either activated when the levels starts or are activated when by their respective Triggers.
- Main article: Algae
Algae is the most common plant based object in Where's My Water? and is the most troubling obstacle in the game. However, it can be beneficial, such as creating bridges with ooze.
- Main article: Bomb
Bombs explode and destroy most things when activated by a fluid.
- Main article: Tap
Taps are part of the pipe that release liquids. To turn on the tap you press and hold the wheel. When you let go then the tap stops and whatever was coming out will stop.
- Main article: Slider
Sliders are a tool that are similar to Platforms but are controlled by the player and not triggers.
- Main article: Converter
Converters are an attachment to Pipe Lines. Any fluid that passes through will be converted to a selected Fluid. Some Converters can have their outputs changed on the player's desire.
- Main article: Hot Coals
Hot coals are an obstacle which is primarily used to turn Water and Poison Water into Steam.
- Main article: Icicles
Icicles are a obstacle which can convert Steam into Water. It can only be destroyed by the Mystery Duck.
- Main article: Balloon
Balloons are a tool which hold fluids. When Balloons hold their maximum capacity, Balloons can hold enough water for Swampy, and fall at a different speed. When a Balloon has Steam in it, it will float up instead. Balloons can be popped by various things, so be careful!
- Main article: Thorns
Thorns act as an obstacle for Balloons. They will pop apon contact. Any fluid will move through it.
- Main article: Fan
Fans blow air around and move any Fluid at any angle to a certain point that it can no longer reach. Fans can be powered by triggers.
- Main article: Vacuum
Vacuums suck up fluids and dispenses them to another location with a Nozzle. Some Vacuums might have to be activated by a trigger, while some might always be activated.
- Main article: Y-Switch
Y-Switchs, direct fluids in two different pipes. The player chooses which direction the want.
- Main article: Mud Patch
Mud Patches are an obstacle for water which acts as an 'one time converter', turning Water and Poison Water into Wet Mud.