Patent ID: 8748162

Claim:
A method for using a pulse flow to circulate algae in an algae cultivation apparatus which comprises the steps of: cultivating an algal culture in an algae cultivation apparatus; circulating the algal culture using the algae cultivation apparatus; transferring a portion of algal culture to a flush tank using a circulation pump, wherein the portion of algal culture being transferred is an effluent; flushing the effluent from the flush tank into the algae cultivation apparatus by initiating an activator to allow for gravity flow of the effluent from the flush tank into the algae cultivation apparatus via a transfer pipe having a first end and a second end, wherein the first end of the transfer pipe connects to the flush tank and the second end of the transfer pipe is positioned in the algae cultivation apparatus; wherein the activator is a device selected from a group comprising a timer and a level switch, wherein said device is connected to the flush tank, to open a gate valve to allow the effluent to enter the transfer pipe.