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Much of the material in this section has been prepared specifically for this web-site or is already freely available elsewhere in the Internet.  Where we have included material from other sources we acknowledge that copyright remains with the original author. 

Point of No Return

So now that we have decided on the type of pond we want, lets get out there and do some digging, right?

DesignWrong..! we still have a bit more preparation to do.   The first thing to consider is size, "Yes", you've decided that it's a Koi Pond so it's going to be big,  but how big?.   Where are you going to put it?  How much is it likely to cost?  How are you going to pay for it?  What construction method are you going to use? Are you going to do the work yourself? (Are you capable of doing the work yourself?) 

What type of filter and pumping system are you going to use? Where are you going to get all the bit-and-pieces? How are you going to maintain it? How much is going to cost to run? And last but not least, when are you going to do it?

If you think at this stage that I am overcomplicating things then please accept some advice from someone who has actually built a few ponds.  FORGET ABOUT THE WHOLE THING AND PLANT GRASS INSTEAD.

So now that I have got that off my chest let me consider each of the issues in turn, perhaps then you'll understand why I made that statement.

Size: Big is beautiful, at least from the Koi's point of view.  It is more stable and can hold more fish.  The down side is it costs more to build, run, and to treat if medication is required. Trying to catch a Koi in a 7M x 6M x 1.5M pond is a tricky task indeed.

Location:  Again as I noted on a previous page, location is important.  Out in the open in direct sunlight will encourage algae growth and green water. Shaded by trees will mean decaying leaves laying in the pond over the winter. When spring comes around they will be a nice thick sludge in the bottom and a perfect breeding ground for bacteria and parasites.

Cost:  Well here there are no hard and fast rules.  I can only give you a guide based on my own and other pond builders experiences. 

  • Water Features   --   Individual prices from £20 - £200+
  • Wildlife Ponds     --    £ 0.50   -   £ 1.00 per Gallon
  • Fish Ponds          --    £ 1.00   -   £ 2.00 per Gallon
  • Koi Ponds            --    £ 1.50  -    £ 2.50 per Gallon
  • If you think that some of the suggested costs are a little excessive please remember that they include such things as landscaping or paving around you new pond.  As I said previously, there are some economies of scale, especially with Koi ponds, but these only become really significant around 10,000 gallons and above. 

    There are stories of people who have built their own ponds for only a few pence per gallon, and I would really like to meet them and shake their hand. For most people the above prices are a good guide for budgeting, if you do finish under budget so much the better.  What you do want to avoid at all costs is running out of money halfway and being left with a large muddy hole in the middle of the garden, or getting the pond finished and not being able to afford paving for around it. Nice Fish, but you have to put on Wellington Boots to see them.

    So are we going ahead with this pond, Yes or No?   If yes then on to the next page..!

    Koi and Goldfish in a Garden Pond