When buying a particulate filtration system make sure it has:

•    An adjustable water level gate. Without this adjustable gate, the skimmer has to be set at water level and you can't adjust it if you get it wrong. With an adjustable one, you can set the pond water level from the skimmer. This is an extremely useful feature that many low-priced units do not have.
•    Made of heavy grade plastic as it is going to buried in the ground therefore it needs to bear-up against the weight.
•    A skimmer that uses the same sized piping as your pond filter.
•    Make sure the filter material is easy to get to and a system that is easy to maintain.
•    Durable filter material that will last multiple seasons and that is easy to clean out.
•    A skimmer that is bigger than you think you need. Remember you can disguise it with landscaping but the bigger the skimmer, the less you have to clean it out.

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