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The Colour has to be a Bright Red
If you want to buy bricks, check the finish of the brick. It should
be rectangular with sharp edges and bright red. See that the bricks
don't even have the tiniest of cracks.
 A
simple test to check the relative strength of a brick:
Take a brick and drop it from a height of about three to four feet.
The point where it crumbles completely gives you an idea of the
relative strength. If one variety of brick breaks at three feet
and the other at four feet, the latter is almost twice as strong
as the former.
Weigh a brick, then immerse it in a pail of water for about 24 hours
and weigh it again. If the weight gain is very high, then the brick
is of inferior quality.
INSTALLING THE CASING PIPE IS MOST IMPORTANT
 Here
are a few things to remember before you hire your borewell drilling
contractor:
1.Make sure that the contractor has all the required infrastructure
(like drilling rigs) for the job and can source qualified geologists
to conduct a survey of the land to locate water.
2.The drilling company should also have the technology for installing
pumpsets and servicing these sets later on.
3.During the construction of the borewell, the most important thing
is the installation of the casting pipe. If this is not done properly
you are liable to get silty water. If you use inferior casting pipes
they will quickly corrode and the life of the borewell will be lessened.
4.The size of the drilling pit is very important. According to
government rules, the pit's diameter should be 147 mm. If the diameter
is less than this, the submersible pumps won't fit in. If you are
not careful, the contractor can just dig the pit and walk away,
which would be of no use.
5.The actual quantity of the water yield can be measured with the
help of a V-Notch. Make sure the contractor shows you the yield
by passing the water through the V-Notch. When you have installed
your pumpset, see that the contractor guarantees after sales service.
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