A Koi fish pond produces a lot of organic debris and muck. Sum up with the stuff that falls in the water (leaves, insects, dust, etc.) we can say that a Koi pond can be very dirty. So, what can we do to keep good quality water?

Koi pond skimmers are the right solution to trap the rubbish on the surface before it sinks. If the filtration system is working properly and the water is returning from the filtration system to the pond then, at some stage, the surface debris will for certain pass through the mouth of the skimmer. In a rectangular Koi fish pond it is best to return water to one end and to skim the surface at the other.

Water overflows make ideal surface skimmers, if you want to add this as a feature to your pond. Bear in mind though that the pond water level then becomes important and needs to be maintained at a relatively consistent level or else your filtration system and flow rates will tend to vary somewhat.

A great idea for Koi pond skimmers is to have them built into the Koi pond right next to the settlement chamber. That way the skimmer will clean to surface of the pond water right into the settlement chamber, from where all the collected debris can be accumulated and filtered out of the pond system.

If you live in an area where the amount of leaves falling is very big you should use a conventional pool skimmer to remove the leaves. This way you don’t load the filter system and we keep our Koi fish pond with quality water.