The surface skimmer is an important piece of equipment for any pond. Their purpose is to skim off floating leaves and debris from the ponds surface before it sinks, therefore reducing the amount of sludge build up on your pond floor.
They clearly improve and help to maintain good pond water quality.
I was delighted with my barrel, which was of infinitely superior quality to any other barrels I had managed to source locally. It is water tight as advertised (much to my surprise). It was also an extremely reasonable price.
Mrs Ryan, Herefordshire.