Category Archives: Koi Pond

Stopping Koi Pond Algae

Stop Koi Pond Algae The growth of algae in your Koi pond is definitely not a good sight to be seen and moreover, it also provides a bad odor to the surrounding environment. If algae are not removed from the pond, it will somehow produce ammonia and if your Koi pond has excessive ammonia, it will ...

Koi Pond – Ultra Violet Sterilizers

You will need to install UV sterilisers if you have green water. You should however remember that you should not rely solely on the UV unit to get rid of algae in the water. The filter that you’ve installed should be sufficient to solve the green water problem.UV Steriliser is recommended for Koi keeping. Not ...

Koi Pond – Venturi

Venturis are an effective way of getting oxygen into the water. While you can build one yourself, there are many choices that you can buy now at suppliers at reasonable price. A venturi works by compressing the flow of water, then releases it abruptly into a larger chamber which creates a vacuum.  Air is introduced ...

Koi Pond – Drains box

A drain box is where the bottom drains from the filters, vortex chamber, and filter overflow system are led. If you want to install any additional features to the pond, like a sand filter then it is recommended that you run spare 2" pipe and blanking it off so that it is available later if ...

Koi Pond – Pumps & Systems

You should by now have considered which type of pump and system that you will want to use with your pond, once you’ve decided which type of pond and filter system you will be using.Pump chamberPump chamber is where you will fit the pumps, UV, air blower, and any other electrical appliances that support the ...

Koi Pond – Filter media

There is a wide range of filter medias to choose from for your filter system. The following are just some that are available in the market:BrushesEficient at removing debris and blanket weed, brushes were very popular until a few years ago.However they require regular cleaning and also a lot of maintenance, and is time consuming. ...

Koi Pond – Concrete block filter units

There is a toss up between purchasing a fibreglass filter units that come pre-built but are expensive, or to build your own concrete block filter unit. Get as many quote as you can from dealers and suppliers, then weigh out whether you want to buy a fibreglass unit or to build your own.Sometimes it is ...

Koi Pond – Vortex filter chambers

Vortext chamber work just like a pre-fabricated chamber or fiberglass chamber, save for the difference in shape. The principle behind the shape of the chamber would have been discussed in an earlier chapter (see Vortex Chamber) and applied in the same manner to multiple vortex filter chamber like the one you see below.Square filter bays ...

Koi Pond – Fibreglass filter unit

When choosing your fiberglass filter unit, take into account the surface area of the filter in relation to the surface area of the pond. The surface area of the filter has to be one third the area of the pond to work effectively.Water from the pond enters the unit from the right most chamber where ...

Koi Pond – Filter systems

Knowing which filter system you will be using is important. You will need to make sure that you have a system that can support the volume of your pond effectively. You will also need to decide this base on the space that you have available to support the pond.  There are a few types of ...

Koi Pond – Fibreglass

Unless you have experience applying fiberglass, it is well advise to leave the job to the professionals. Make sure that you find a company that has experience fibreglassing ponds. This is because the people whom you employ should understand that boat building and car bodies are very different from fibreglassing a pond, especially in regards ...

Koi Pond – Rendering the pond

Rendering the pondThe next step after you’re done building up your walls, the layout of pipings and angling and smoothing out the corners, is to render the surface of the walls, base, etc.Mix three parts sand to one part cement for the render coat.Apply first coat directly onto the block work. Complete the surface, then ...

Koi Pond – Angling And Rounding The Corners

Angling the baseOnce you’ve completed your walls, it is time to considered angling the base of the pond.The main reason for this is so that any waste from the fish, debris and such will be move towards the bottom drains, and then removed by the vortex chamber. In this manner it would not accumulate at ...

Koi Pond – Building Walls Around the Pond

Building Walls Around the PondOnce the concrete base is completely dry it is time to start building the walls around the pond.You have the choice of using concrete blocks that are 18 x 9 x 4 inches in measurement and lay them on their side so that the wall is 9 inch wide. Or ...

Koi Pond – Vortex Chambers

Vortex ChambersWhat are vortex chambers?The figure on the left is a basic sketch that shows the basic idea for the Vortex chamber.Water passes through the inlet from the bottom drain just above the cone section of the chamber. The water will then flow around the side of the vortex, rising up and out through the ...

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