Concrete Koi Ponds

Building a concrete Koi pond is a very expensive thing to do. A koi pond should be at least 5 foot deep and have its own built in filtration system. A typical Concrete Koi Pond should contain about 4000 gallons of water and to estimate how much it will cost assume 2 to 4 pounds ( 4 to 8 dollars )per gallon. This figure does not include the filtration system or any fish to stock the koi pond with. However if should last a life time and not require much maintenance. The same rules apply for location as other pond build methods but don't build to close to your home or your neighbours property as you will be digging very deep. As this is such a large job and really needs to be

done correctly the first time it is often best left to the professionals. The first thing to ask yourself is "Can I get a mini digger into my Back garden ?". If the answer is no then your in trouble as it will take weeks to dig the hole. You also need to think about how you dispose of the soil, this will not be cheap. Depending upon what type of soil you have is also a consideration when you build your koi pond, clay soil will constantly fill with water when it rains making the construction difficult. Some types of soil will also need shoring up as it will be forever falling into your pond.

When planning the size of the pond don't forget you will need adequate space for your filtration. This will be about 25% of your total pond area. There are two ways to build a concrete koi pond. Both require at least a 6 inches of reinforced with steel concrete for the base and concrete 9 inch hollow blocks for the walls that are backfilled with concrete during construction. The walls are then rendered. The difference is the way the Concrete Koi pond is made water tight. The first way involves applying a fibre glass coating and the second painting with a specialised pond paint. The filtration area will require about 4 inches of re-enforced concrete base to support your filter system. Filters are available in many shapes and sizes, and can be built in situ or brought pre-made and simply connected into your Koi Pond. There are advantages of both. Home made filters are cheaper to construct and can be designed for your particular pond size. Pre-made filters are more expensive but generally will be more efficient. Your design must also consider garden pond pumps, air pumps Ultra Violet boxes etc. This brief overview of building a concrete koi pond should at least give you an idea of what's necessary.

I recommend that you at least discuss your plans with a professionals pond building company before you start to build your own.

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