Pond Logic® KoiAir™ Aeration Systems provide powerful aeration to even the largest water gardens and features. Designed as a complete aeration solution, the KoiAir™ contains everything you need to introduce aeration to large water gardens and features with a quick and simple installation.

	High Efficiency Aeration Pump Running on as little as 17 watts, these whisper-quiet Pond Logic® SilentAir™ aeration pumps are the heart and soul of our KoiAir™ aeration units - costing virtually nothing to run, you can feel good about providing constant aeration to your pond
	EasySet™ Self Weighted Airline Our heavy-duty flexible airline is designed to sink the pond’s bottom even when filled with air - EasySet™ airline is extremely resistant to cuts, snags and kinks for maximum performance with minimal headaches
	Diffuser Plate Assembly Each KoiAir™ diffuser plate utilizes a sturdy base plate and 1-piece weighted distribution block - the distribution block incorporates a 3/8” barbed inlet for quick hook-up to the included EasySet™ airline while providing threaded female outlets to accommodate 2 membrane diffuser sticks
	Membrane Stick Diffusers Designed to improve oxygen absorption, our diffuser membranes deliver all of the performance of air stone diffusers without the hassles of replacing cracked stones or frequent cleanings due to debris accumulations - virtually maintenance-free, membrane diffuser sticks resist clogging and their flexibility eliminates the possibilities of cracking and leaking

Koi Pond Aeration

Pond aeration in some form should be utilized in every pond to maitain oxygen levels at or near saturation levels.

There are a number of very essential pieces of equipment to consider when planning a pond.

None more so than a good reliable quality air pump.

So why aerate a Koi pond?
A Koi pond is more than a hole in the ground with a liner and some water. In order to have a healthy, dynamic pond environment you also need a biological filter, a source of aeration, a circulation pump and adequate space, or volume. It is important to note that all of these elements must work in harmony with one another.

The filtration system purifies the water of wastes, bacteria and other toxins. An aerator supplies air to the water so the fish will have oxygen and the water does not stagnate. The pump moves the water through the filter and aerator. This cycle is the lifeblood of a pond.

Water ponds, fish and oxygen ... the big secret to Koi fish keeping.
We survive on this earth because we can breathe oxygen. Koi need oxygen and the beneficial bacteria that keep the water healthy need oxygen.

Where is the best place in any pond system to add air or oxygen?
Directly into the biofilter system as close a possible to where the bacteria are sitting. This is why vortex filters and Japanese matting work so fantastically well together in any serious water ponds system .... but only by pumping plentiful volumes of air around the Japanese matting matrix.

How much air should you add to you Koi Pond?
Add as much air to your pond as you can using air pumps and air stones to distribute the air (highly recommended for ponds that are heavily stocked). You can add the air directly to the pond, the filter, the waterfall and anywhere else you can think of.

Pond Volume in Gallons	1000	2000	3000	4000	5000	6000	7000	8000	9000	10,000
Liters of air/min required to maintain Dissolved Oxygen at Koi Safe Levels	40	80	120	160	200	240	280	320	360	400

These numbers are intended as a guideline. Your application may vary according to stocking levels. (In general terms, 40lpm per 1000 gallons is a good rule of thumb.)

The amount of oxygen water can hold is dependent upon atmospheric pressure, salinity and temperature. Water can hold less oxygen as altitude increases. Salinity is not important for most freshwater fish producers. The most important factor is water temperature. As temperature increases, water can hold less oxygen. Most low oxygen problems occur from June through September. The reasons for this are:

• Water can hold less oxygen as it becomes warmer.
• Respiration rates of both plants and animals increase with the warmer water, so more oxygen is used.
• Summer's still, hazy or cloudy days may reduce the amount of oxygen produced.
• Large amounts of feed given to fish at this time of year result in large quantities of fish waste which create a higher demand for oxygen.

The last note for safety
NEVER - NEVER install an air pump BELOW water level! (Unless you install a check valve in the line!) If at any time your power supply to your air pump is interrupted, water will back siphon down the delivery tube and flood the pump workings, rendering the pump inoperative, to say nothing of the danger of water and electricity coming in contact.

HELPFULL HINT

Many air pump manufactures express pump output in Liters Per Minute (LPM) rather than Cubic Feet Per Minute (CFM). We give you both but the formula for converting LPM to CFM is:

LPM divided by 28.3 = CFM