Protected Wells
81
The windlass, bucket, and chain
A windlass is a shaft fitted with a handle that makes raising the bucket easier
and provides a place to wrap the bucket chain or rope. If a pump is fitted to
the well later, the windlass can easily be removed. Attach a bucket to the end
of the chain or rope. Chain is best because fewer germs will grow on it, but it is
costly. Rope is less costly and can be replaced easily if it breaks.
Set windlass supports in concrete
on each side of the well.
Cut slots in the
poles and place
the windlass.
Drive bolts through the
posts above the windlass to
keep it in place as it turns.
This design shows wooden windlass supports set in the ground.
Windlass supports may also be made of bricks.
The drainage platform
The drainage platform carries runoff away from the well to a drainage area.
This prevents the area around the well from getting muddy, and breeding
germs and insects. Germs can grow in cracks, so it is important that the
platform is well made.
Windlass
Bucket chain or rope stays
wrapped around windlass
Well cover
Bucket hangs on
handle to stay clean
Platform 2 m in diameter
Runoff channel 2 to 3 m
long if possible
Pour concrete to a depth of 75 mm, with a raised outer rim 150 mm high. The entire
platform and rim should be reinforced with 3 mm wire to prevent it from cracking.
A Community Guide to Environmental Health 2012