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Underground tank

No change in size, 19:04, 13 April 2012
→‎Construction, operations and maintenance
====Build the tank====
[[Image:TankLiningOptions.jpg|thumb|right|500px|Recommended options for the tank lining when plastering the walls.]]
[[Image:AddTankLining.jpg|thumb|right|300px| Tank lining / Plastering <br> ©Practical Action/Douglas Gumbo.]]
# Along any dug dead level contour (which is your collection area) choose where you can construct your storage tank. All soils that allow rapid percolation the closer should be the storage tanks. This is because your soil quickly loses water and that's where your plants are likely to show signs of moisture stress during the dry spell.
# Measure along the channel the length of the tank you want and mark using pegs. Dig the marked area up to a further depth of 500cm or more. The deeper it is the more water will be harvested.
====Add a roof to the tank====
[[Image:AddTankLining.jpg|thumb|right|300px| Tank lining / Plastering <br> ©Practical Action/Douglas Gumbo.]]
# Using earth bricks mark the inlet and outlets of your tank from both ends of your tank.
# Lay your wooden poles across your tank spaced at 2m.Ensure that the poles are not totally fixed for ease removal during maintenance usually during the dry season.
Winona
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