This seems to be a burning question to most people. Understandably so, as it is the first step to building a backyard pond and usually the deciding factor of whether they want one or not, or if it is even feasible. Of course I believe any backyard can have a pond. However, as with everything, there are likely exceptions.
Decks and Patios
If you have a deck or patio try putting your pond where you can see it. Choose a location in sight from your favourite spot on the deck. That way you can enjoy the sights and sounds of the pond while relaxing in your favourite spot. Another suggestion for those with railings around a side of their deck or patio is to place the pond on the other side of the railings. This gives people the luxury of leaning against the railing (as a lot of people like to do) as they watch the pond. By doing this, it also gives the person a feeling of being 'someplace else'.
Ground surface
Make sure that the soil and ground around the pond is slightly elevated to allow excess water to flow away from the pond and not into it. You dont want to continuously be cleaning out guck and mud from your pond. Also, make sure that no water drains towards the house. Most backyards have a slight decline to them the farther you move away from the house. This forces water build up, from such sources as rain, to run away from the house. Keep this idea in mind when selecting a location for your pond.
FromUp Above
If you think you may want to add lighting/water-fall affects/etc to your pond, either immediately or possibly in the future, you will want to make sure that the location contians or can maintain electrical services and devices.
An extra note, depending on your personal desire, take good observations of the surrounding area where your pond will sit. Are there a lot of trees? Do you want it mostely in the shade or in the sunlight? Or both? Are there objects that may fall into the pond such as leaves?
Tub Kits and above ground ponds.
If you do not have space in your backyard for a 'in-ground' pond, you do have other options that will give you the same affect as most ground ponds. "Tub" ponds or large water bowls can be placed directly on your patio or deck. There are plenty of decorations that you can place around the bowls that equal the beauty of any in-ground pond. An added bonus is that they are usually cheaper then in-ground ponds and can also be moved indoors during the cold seasons.
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Hope this information helped to ease some of your burning questions. If you have anymore questions feel free to leave a comment and I'll do my best to answer them for you. And if I dont know I'll even go through the trouble of finding it for you! Everyone deserves a backyard pond =)
