 Pond skimmers are designed to work with other types of filters, as a sort of pre-filter that removes the larger elements such as floating leaves and other debris, which would clog other types of biological or chemical filters. The same debris would also clog the pump.
Many pond skimmers are designed to blend in with your pond’s design. Some may have an artificial rock or natural-looking cover over the top.
Pond skimmers are an important part of ponds, since they help keep them clean, and works hand-in-hand with filtration and pumping systems. Pond skimmers are easy to install, and can easily be hidden from view. The skimmer houses the pump, eliminating the need for tubing in the pond
Pond skimmers should be positioned at the opposite end of a waterfall, if you have one; this will help provide for proper circulation throughout your pond.
Bottom Drains
Koi ponds are designed for koi keeping and as such, high water quality is the number-one goal. Large external filters are the norm and bottom drains in bare bottoms are considered a necessity to deal with large fish loads and optimum water circulation.
Koi ponds usually have smooth, bare liner or concrete bottoms, so debris can be easily removed as it slides down along the bottom slope toward the drain. Drain sizes vary from 2inch to 4inch in diameter depending on the pumps used and pond volume.
The first step in a proper pond is ensuring that waste products are efficiently removed for processing by the filtration system. The application of bottom drains coupled with skimmers is essential in this regard.
It is generally accepted that bottom drains are a must and should be fitted to all ponds under construction, those being modified, or as required during alteration. The number of bottom drains required is a function of optimizing the draw to each drain. A good rule of thumb is one drain for every 12 foot diameter. Skimmers are used to further facilitate the removal of waste and wind driven debris. Other methods for optimizing waste removal include the correct application of water return lines and air devices to ensure good circulation in the pond.
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