![]() For instance, if you plan to have a large koi stock, installing an aerated bottom drain is beneficial. Bottom drains are useful for a variety of reasons, including ensuring that the bottom of your pond is vacuumed regularly.Ĭhoosing the right bottom drain will depend on the size and type of pond you have. It can be a time-consuming process but will improve your pond’s overall health and appearance. It is best to install one in new construction before installing a filter system. If your pond is not prone to excess debris, a bottom drain may be unnecessary. This will create several bowls in which the waste will settle.ĭespite the benefits of bottom drains, they may not be necessary in all cases. To calculate the length of your pond, divide the long dimension by fourteen and add two feet to the bottom drain’s effective radius. You can also contour the bottom of your pond to increase the drain’s effective radius. However, if your pond is larger than fourteen by seven feet, you will need two bottom drains. This means that it will only draw in waste that is close to it. The bottom drain is placed near the center of the pond. Most bottom drains are eight to ten inches in diameter. It is best used with a high-quality aeration unit to ensure proper drainage. A bottom drain uses gravity to remove debris and other waste from the water without harming fish. Installing a bottom drain can also be combined with an external pump and pre-filter. The bottom drains are a great choice for a pond because they eliminate a large amount of debris and reduce filtration requirements. One of the benefits of installing a bottom drain in a pond is that it improves the overall aeration of the pond. If you don’t want the soil to collapse into the pond, you can also construct a waterfall to create a natural water feature. Then, fill it with gravel or rocks to create interest. Creating a shallow drainage ditch with gravel or rocks can help drain the water and prevent a low spot from becoming flooded. If your yard has a low spot, you might want to consider building a creek bed to direct water away from it.
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