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close this bookBetter Farming Series 29 - Freshwater Fish Farming: the Pond (FAO, 1981, 43 p.)
close this folderBuilding a bigger pond
View the documentHow to make your old pond bigger
View the documentHow to build a new, bigger pond
View the documentThe inlet
View the documentThe outlet
View the documentA better outlet
View the documentThe overflow
View the documentA siphon
View the documentScreens

The inlet

78. You will need an inlet to let water into your pond when you want to fill it.

79. You should place the inlet at the point nearest to the water supply. Most often this will be at or near the upper end of your pond.


Upper end

80. Your inlet can be made from a piece of heavy bamboo or a pipe of plastic or metal. The inlet pipe should be about 10 centimetres in diameter.


Inlet pipe

81. The inlet pipe should be long enough to reach through the top of the bank from one side to the other. You will need a pipe about 3 metres long to reach through the bank at the upper end of your pond.

82. Now dig a gap in the bank where you want the inlet to be. It should be a little above the water- level on the inside of your pond and a little below the level of the water which flows from the source on the outside of your aced.


Inlet

83. Put the inlet pipe in the gap in the bank and rebuild the bank over it.

84. You can also make an inlet by cutting a shallow trench through the bank to let the water into the pond.

85. If you use a shallow trench to get water into your pond, you can improve it and keep it from washing away by using a trough of roofing metal to line the bottom of the trench.


Use a trough of roofing metal