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close this bookBetter Farming Series 29 - Freshwater Fish Farming: the Pond (FAO, 1981, 43 p.)
close this folderPlanning a bigger pond
View the documentWhere to put your pond
View the documentWater
View the documentPlace
View the documentSoil
View the documentTesting soil
View the documentHow large should your pond be?

Testing soil

27. You should test the soil to see if it is good for building a pond.

28. The first test is easy. Take a handful of soil from the surface and squeeze it into a ball.


Test the soil

29. Throw the ball of soil into the air and catch it.


Test the soil

30. Bad soil with too much sand or gravel in it will not stick together and the ball will fall apart.

31. If the ball sticks together well. the soil may be good but you cannot be sure. Now you should make a second test to be sure that the soil is good.

32. Dig a hole as deep as your waist.


Test the soil

Early in the morning fill it with water. Fill it to the top.


Test the soil

33. By evening some of the water will have sunk into the soil.


Test the soil

34. Then fill the hole with water again. Fill it to the top. Cover the hole with boards or leafy branches.


Test the soil

35. The next morning if most of the water is still in the hole, the soil will held enough water to build a fish pond there.


Test the soil