FISH POND DESIGN
Your fish pond design should be such that when built you can easily fill it with water and totally drained the water. Usually rectangular ponds are much easier to build and harvest when compared with square or round ponds. The building of smaller pond that is about 15m x 10m (150 square meters) should be preferable, but ponds can be larger.
1. PREPARE THE SITE
If your choice of site is a virgin land, you will need to carry out site preparation works such as clearing the vegetation, cutting and removing of trees.
2. BUILDING A CLAY CORE
A clay core is your foundation for the pond bank as it makes it strong and prevents leaks. You should dig a trench about 50cm wide and 30-60cm deep, it should be just outside the lower side of the pond and halfway up on the side of the pond. The trench should be filled with good clay soil and properly compacted. Haven done this, it should provide you with a strong foundation for your pond walls.
3. DIGGING YOUR POND AND BUILDING THE WALLS
The next step is to dig the pond and use the soil to build up the walls of your pond. If you have more of sandy soil, don’t use it. Your pond walls should be about 30cm above the water level that is inside pond. It should have a gentle slope, rising 1m in height for every 2m in length.
4. BUILDING AN INLET AND OUTLET
Your inlet pipe carries water for filling the pond. As this often contains a lot of soil which can make the pond very muddy dig a hole beneath the inlet pipe. It will allow the soil to settle and prevent your pond from filling up with dirt.
The inlet pipe should be screened to prevent wild fish from entering. It should be about 15cm above water level to prevent fish from escaping through it and at the same time mixes air into the water as its splashes into the pond.
It’s preferable that the water should be about 30cm deep at one end and 1m deep at the other.
5. PROTECTING THE POND BANKS
Once you have completed the pond, to prevent erosion cover it with the soil you saved when the pond was being dug.
In other to prevent damage to the walls dig a run off ditch along the upper side of the pond to carry water away from it. The outlet is a runoff pipe through the pond wall which is only used in emergencies. You should screen the outlet to prevent fish from leaving the pond.
6. FILLING YOUR POND
Rocks should be positioned at the bottom where the water will fall in from the inlet pipe. This is to prevent the water from digging a hole and eroding the pond bottom.
The pond should be filled at least two weeks before you stock your fish. This will allow your pond to become warm and fertile before stocking fish. Your pond may seep water initially, but should seal eventually.
Please remember, that proper selection of pond site is very important and you are now more informed on the choice of fish pond design.
However, should you want to know more about how to design fish pond? Then click here
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