Submersible Pond Pump!

Since the submersible pond pump must be operated continuously or when water has a long distance to go from a pump to outlet – often the case with waterfalls or streams, the obvious answer is to install a re-circulating pond pump.

Submersible pond pump simplify plumbing to the extreme. It sits inside of pond skimmer or on the floor of the pond, often hidden only by water, and operates silently. Flexible tubing or a pipe carries water to the waterfall or a fountain.

My search for a pond pump introduced me to array of pump manufacturers and suppliers. Cal Pumps, Pondmaster, Atlantic Laguna, Performance Pro, Little Giant, Cyprio, Beckett, Tetra Pond and many more...

Some are Mag-Drive design, all plastic, energy efficient and economical in-line submersible pond pumps. The Hybrid-Drive pumps combine the benefits of magnetic and direct-drive technologies and available as in-line and submersible.

The pumps, that handle solids up to 1” without clogging, are sump style and made of plastic or, for higher capacity and efficiency, are stainless steel. Most pumps are covered by a manufacturers warranty ranging from 1 to 3 years.

It doesn’t matter which manufacturing brand name strikes you. The pump you choose needs to be sized properly for the overall system.

If a pump is too large, it can overwhelm the intake and return components. If it’s too small it will not pump enough water to be effective.

Pay attention to the recommended pond and pump sizes for various components. Generally, the pump GPH rating (Gallons per Hour) should be Ό to Ύ of pond volume. When the waterfall is planned, use Ύ rating.

Here is how select proper submersible pond pumps size:

Calculate the gallon volume and surface area of the pond.
The formula for computing pond capacity is 7.5 gallons of water per cubic foot.
Using foot measurements, multiply pond length by average depth by 7.5.

My pond, for example, is 19’ x 15’ x 1.5’ average depth:

The water has to reach the top of the bio-filter before it begins the downfall. To maintain Ύ rating, I chose to install high efficiency, stainless steel pump by Top Control. The pump is rated 3900 GPH at 1’; 3000 GPH at 5’; 2300 GPH at 10’.
The outlet tubing is 2”. The inlet size 1.4”.

My filter/waterfall design is all in one, but with so much power I am able to run the filter and waterfall with ease. Some designs have filtration system separate from water features and would require more than one pump. Multiple pumps will make it easier to control each for desired effects.

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