Based on the context and the answer, generate a question. 

Context: I took coffee and a stone book , and a list of rocks to do a bit of research , and enjoyed myself . The pond pump started slowing down , and I watched it slow in the few hours I was out reading , so I cleaned it . The algae are floating around the pond thickly , and it had clogged the pump again .

Answer:

I might be trying to remove the excess algae .



Why might I be pumping the water from the pond ?