My parents spent $69.56 on this kit to help clean their pond in their yard. It had algae clung to the liner and this kit was worthless. The algae head - have no clue what the purpose was. You could but a towel on a broom and swirl it around and have the same effect. The algae brush was nothing more than a large bottle brush. The skimmer is a small pool net. This kit was just money taken from my parent's (already limited) income. My mom said she called and they gave her $15 back for algae head. No Refunds I guess. So I would not buy this EVER.