Bring the function of variable flow to your waterfall pump. These pumps from Aquascape are adjustable using a remote control or your smart phone. Some reasons you would choose to have an adjustable flow pump would be to dial in that perfect flow rate! Also, they can set up on automations within the Aquascape smartphone app to automatically turn the flow up or down or turn the pump on and off on a schedule. This is perfect for slowing the flow at night to give your pond fish a more calming environment. You can also use the adjustable flow to turn down the flow during the winter months.